Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi phan huy snippets" » "phoi phan huy snippets", "chi phan huy snippets", "phe phan huy snippets", "phi phan tu snippets", "phi phan xay snippets", "phi van huy snippets"

Try widening your search to All Fields.

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