Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoc toan xac snippets" » "hoc tan xac snippets", "hop toan xac snippets", "hoa toan xac snippets", "hoc toan ban snippets", "hoc toan hoc snippets", "hoc toan tap snippets"

Try widening your search to All Fields.

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