Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"pha cau nhan snippets" » "pha chau nhan snippets", "pha ca nhan snippets", "pha cu nhan snippets", "phan cau nhan snippets", "phap cau nhan snippets", "pha cac nhan snippets"

Try widening your search to All Fields.

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