Can't delete rows containing certain keyword within text - vba

Question

I have written a macro to remove rows containing certain text in it. If either of the keyword contains any text, the macro will delete the row. However, the macro doesn't work at all. Perhaps, i did something wrong in it. Hope somebody will help me rectify this. Thanks in advance.
Here is what I'm trying with:
Sub customized_row_removal()
Dim i As Long
i = 2
Do Until Cells(i, 1).Value = ""
If Cells(i, 1).Value = "mth" Or "rtd" Or "npt" Then
Cells(i, 1).Select
Selection.EntireRow.Delete
End If
i = i + 1
Loop
End Sub
The keyword within the text I was searching in to delete:
AIRLINE DRIVE OWNER mth
A rtd REPAIRS INC
AANA MICHAEL B ET AL
ABASS OLADOKUN
ABBOTT npt P
AIRLINE AANA MTH
ABASS REPAIRS NPT

Answer 1

Try like this.
What about Using Lcase.
Sub customized_row_removal()
Dim rngDB As Range, rngU As Range, rng As Range
Dim Ws As Worksheet
Set Ws = Sheets(1)
With Ws
Set rngDB = .Range("a2", .Range("a" & Rows.Count))
End With
For Each rng In rngDB
If InStr(LCase(rng), "mth") Or InStr(LCase(rng), "rtd") Or InStr(LCase(rng), "npt") Then
If rngU Is Nothing Then
Set rngU = rng
Else
Set rngU = Union(rngU, rng)
End If
End If
Next rng
If rngU Is Nothing Then
Else
rngU.EntireRow.Delete
End If
End Sub

Answer 2

VBA syntax of your Or is wrong,
If Cells(i, 1).Value = "mth" Or "rtd" Or "npt" Then
Should be:
If Cells(i, 1).Value = "mth" Or Cells(i, 1).Value = "rtd" Or Cells(i, 1).Value = "npt" Then
However, you need to use a string function, like Instr or Like to see if a certain string is found within a longer string.
Code
Option Explicit
Sub customized_row_removal()
Dim WordsArr As Variant
Dim WordsEl As Variant
Dim i As Long, LastRow As Long
Dim Sht As Worksheet
WordsArr = Array("mth", "rtd", "npt")
Set Sht = Worksheets("Sheet1")
With Sht
' get last row in column "A"
LastRow = .Cells(.Rows.Count, 1).End(xlUp).Row
For i = LastRow To 2 Step -1
For Each WordsEl In WordsArr
If LCase(.Cells(i, 1).Value) Like "*" & WordsEl & "*" Then
.Rows(i).Delete
End If
Next WordsEl
Next i
End With
End Sub

Answer 3

I try to make my code sample as I can if you have any question please ask
Private Sub remove_word_raw()
'PURPOSE: Clear out all cells that contain a specific word/phrase
Dim Rng As Range
Dim cell As Range
Dim ContainWord As String
'What range do you want to search?
Set Rng = Range("A2:A25")
'sub for the word
shorttext1 = "mth"
shorttext2 = "rtd"
shorttext3 = "npt"
'What phrase do you want to test for?
ContainWord1 = shorttext1
ContainWord2 = shorttext2
ContainWord3 = shorttext3
'Loop through each cell in range and test cell contents
For Each cell In Rng.Cells
If cell.Value2 = ContainWord1 Then cell.EntireRow.Delete
Next
For Each cell In Rng.Cells
If cell.Value2 = ContainWord2 Then cell.EntireRow.Delete
Next
For Each cell In Rng.Cells
If cell.Value2 = ContainWord3 Then cell.EntireRow.Delete
Next cell
End Sub