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"
"van tan nham snippets" » "van toan nham snippets", "van tan nam snippets", "van tan nhan snippets", "van tuan nham snippets", "van ban nham snippets", "van tai nham snippets"

Try widening your search to All Fields.

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