Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan sach hoi snippets" » "dan sach code snippets", "ban sach hoi snippets", "dan cach hoi snippets", "dat sach hoi snippets", "dan sach doi snippets", "dan sach moi snippets", "dan cach thoi 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: (((("python using java snippets") or ("dan sach hoi snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dan sach hoi snippets"))) OR ("locating bug core snippets")).
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