Q:

Need to create a NOT LIKE Condition1 OR Condition2 Or Condition3 equivalence in Regex

I'm trying to conduct a NOT LIKE Condition1 OR Condition2 OR Condition3 equivalence in Regex. I want to find all strings which does not include any of the substrings RSBO,RRABO,RSISTA0
From this thread here I've concluded that one can write ^((?!RSISTA0).)*$ to find all strings which does not include the phrase RSISTA0
So for my requirement when I have three conditions that must be met I tried: 
^((?!RSBO).)*$|^((?!RRABO).)*)$|^((?!RSISTA0).)*$

, but then I figured that the |  operation should probably be a AND equivalence. For this I found that one can mimic the AND operation here
This gave me the solution:
(?=^((?!RSBO).)*$)(?=^((?!RRABO).)*)$(?=^((?!RSISTA0).)*$)

This, however, causes me to not return any strings at all, even though I know that there are some strings which does not contain any of the substrings I need to filter out. 
Does anyone have any idea? 

A:

You are close. You just need to place the words to exclude in the negative lookahead like this:
^(?:(?!RSBO|RRABO|RSISTA0).)*$

It won't match any word containing RSBO, RRABO or RSISTA0 but will match any other text.
See the demo

