Change mechanism of finding and showing occurrences

Currently, the mechanism's work is based on the result of the comparison. If there's the exact string or word, then the named section's other occurrences will be displayed with all coincidences in translations.
However, there're some words, "add, delete, edit" & "Add, Delete, Edit" and others that are the same words(and strings), but on the platform, they're not. 
That's why it will be a great simplification in performing the translation if the mechanism of comparing strings will be based on capitalized comparisons or lowercase.