Describes the cause and action for error messages.
Error Message(English)：
vba string does not contain
Excel VBA - Check cells in a column do not contain the string ...
https://stackoverflow.com/questions/31230848/excel-vba-check-cells-in-a-column-do-not-contain-the-st・・・
Excel formula: If cell contains substring "this" AND does not ...
https://stackoverflow.com/questions/40498040/excel-formula-if-cell-contains-substring-this-and-does-・・・
"if not instr" doesn't work as i thought it should in vba
https://stackoverflow.com/questions/29847304/if-not-instr-doesnt-work-as-i-thought-it-should-in-vba
Excel Macro VBA Not Instr
https://stackoverflow.com/questions/15688048/excel-macro-vba-not-instr
Use VBA InStr to Test if String Contains Substring - wellsr.com
https://wellsr.com/vba/2016/excel/use-vba-instr-to-test-if-string-contains-substring/
Find First Cell that Does Not Contain a Certain String - Microsoft Excel ...
https://www.youtube.com/watch?v=qZWAREPb7PU
https://www.youtube.com/watch?v=qZWAREPb7PU
Find Text in a String (INSTR Function) - VBA Code ... - Automate Excel
https://www.automateexcel.com/vba/instr-find-text/
Contains Specific Text - Easy Excel Tutorial
https://www.excel-easy.com/examples/contains-specific-text.html