Why can't I search spaces in shopify what do I do? - shopify

Question

UPDATE
Ok I know what the problem is, but not how to solve it.
vendor:cow horn OR title:cow horn doesn't work
title:cow horn OR vendor:cow horn does.
Spaces are causing the additional prefixes to break where "OR" isn't properly working in my search results.
vendor:cow OR title:cow works
But the moment I put a space in the search then the title won't be searched.
I have a search bar, and I set it to search for an items tag, vendor & title.
Problem is this code prevents me from being able to use spaces in my search term, and if I append "*" I'm unable to use ampersands. Here's the code.
<form method="get" action="/search" id="search-home">
<button type="submit" value="search"></button>
<input type="hidden" name="type" value="product" />
<input type="hidden" name="q" class="searchtext" />
<input type="text" name="original" placeholder="Search"/>
</form>
<script>
$(document).on('submit','#search-home',function(){
var searchtext = $('input[name="original"]').val();
$('.searchtext').val("vendor:"+searchtext+" OR tag:"+searchtext+" OR title:"+searchtext);
});
</script>
If you need to see the search.liquid here it is.
<div id="impact-grid-header" class="collections-page">
<h1 id="regular-title">Search Results for: "{{ search.terms[1] | replace: 'vendor:', '' | replace: 'tag:', '' | replace: 'title:', '' | replace: '*', '' | strip | escape}}"</h1>
</div>
<div id="product-content" class="full-bleed">
<div class="content">
{% paginate search.results by 20 %}
<!-- Begin collection info -->
<div class="row">
<!-- End sort collection -->
<div class="column inventory-items">
{% include 'search-bar' %}
<div id="inventory" class="span12 content-grid">
<!-- Begin no products -->
{% if search.results.size == 0 %}
<div class="row">
<div class="span12 expanded-message">
<p>That's a great idea but unfortunately we don't have that item.<br/>Try again?</p>
</div>
</div>
{% endif %}
<div class="row products">
{% for item in search.results limit: settings.pagination_limit %}
{% if item.variants.first.inventory_quantity >= 0 %}
<div class="item product" data-tags="{% for tag in item.tags %}{{ tag | downcase }}, {% endfor %}">
<a href="{{ item.url }}">
<div class="product-pic">
<div class="inner-pic">
<img src="{{ item.featured_image | product_img_url: 'large' }}" alt="{{ item.title | escape }}"/>
</div>
<!-- Box that appears upon hover -->
<div class="view-product bg-black">
<i class="icon-search"></i>
<span>View</span>
</div>
</div>
</a>
<div class="description">
<span class="product-name">{{ item.title }}</span>
<span class="brand">{{ item.vendor }}</span>
<span class="price">
{% if item.available %}
{% if item.compare_at_price_max > item.price %}
<del>{{ item.compare_at_price | money }}</del>
{% endif %}
{% if item.price_varies %}
<em>from</em>
{% endif %}
<span>{{ item.price | money }}</span>
{% else %}
<span>
{{ item.price | money }} Sold Out
</span>
{% endif %}
</span>
<span class="shopify-product-reviews-badge" data-id="{{ product.id }}"></span>
</div>
</div>
{% endif %}
{% endfor %}
</div>
{% include 'pagination' %}
{% endpaginate %}
<!-- End no products -->
</div>
</div>
</div>
</div>