Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan cau voi snippets" » "phan cau code snippets", "phan dau voi snippets", "phan cac voi snippets", "phan tu voi snippets", "phan cau hoi snippets", "phan cau doi snippets", "phan cau noi snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan cau voi 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 cau voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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