Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"bac cau sach snippets" » "bac cao sach snippets", "bac hau sach snippets", "bac rau sach snippets", "bach cau sach snippets", "ba cau sach snippets", "bac can sach snippets"

Try widening your search to All Fields.

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