Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phan cac ngu snippets" » "nhan cach ngu snippets", "phan dau ngu snippets", "phan lap ngu snippets", "phan cau ngu snippets", "phan cac nu snippets", "phan cac ngan snippets"

Try widening your search to All Fields.

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