Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dao thu phan snippets" » "dao thu nhan snippets", "dao thuat phan snippets", "dao than phan snippets", "dao thi phan snippets", "dao phu phan snippets", "dao tru phan snippets"

Try widening your search to All Fields.

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