Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"chen ho tran snippets" » "hen ho tran snippets", "che ho tran snippets", "chun ho tran snippets", "chen ha tran snippets", "chen hoa trang snippets", "chen hoan tran snippets"

Try widening your search to All Fields.

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