Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"nao thu phan snippets" » "nao thu nhan snippets", "nao thuat phan snippets", "nao than phan snippets", "nam thu phan snippets", "ngo thu phan snippets", "cao thu phan snippets"

Try widening your search to All Fields.

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