Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"day cac nhan snippets" » "day ca nhan snippets", "day cac nha snippets", "day cam nhan snippets", "day cap nhan snippets", "tay cac nhan snippets", "dan cac nhan snippets"

Try widening your search to All Fields.

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