Perhaps you should try some spelling variations:
"doi hoc hat snippets" » "doi hoc phat snippets", "doi hoc chat snippets", "doi hoc hai snippets", "doi hoac hat snippets", "dai hoc hat snippets", "hoi hoc hat snippets", "doi hoc hat slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using a snippets") or ("doi hoc hat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("doi hoc hat snippets"))) OR ("locating bug code snippets")).
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