Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"
"tap van tin snippets" » "tap va tin snippets", "tap vat tin snippets", "tap quan tin snippets", "tap van tien snippets", "tap van tan snippets", "tap van thinh snippets"

Try widening your search to All Fields.

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