Perhaps you should try some spelling variations:
"creating a case snippets" » "creating a code snippets", "creating _ case snippets", "reading a case snippets"
"locating bug core snippets" » "locating bug code snippets"
"creating a don snippets" » "creating a code snippets", "creating _ don snippets", "reading a don snippets", "creating la don snippets", "creating ba don snippets", "creating va don snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("creating a case snippets") or ("creating a don snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("creating a case snippets") OR ("creating a don snippets"))) OR ("locating bug core snippets")).
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