Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phan ba tran snippets" » "phan bo tran snippets", "phan dau tran snippets", "phan lap tran snippets", "phan ban tran snippets", "phan bao tran snippets", "phan ba trao snippets"

Try widening your search to All Fields.

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