Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi doi tran snippets" » "phi doi tan snippets", "phi doi tram snippets", "phi doi trong snippets", "phi loi tran snippets", "phu doi tran snippets", "khi doi tran snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phi doi tran snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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