Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"chon so phan snippets" » "hon so phan snippets", "con so phan snippets", "chon loc phan snippets", "chon co phan snippets", "chon hoc phan snippets", "chon hoa phan 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 ("chon so phan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("chon so phan snippets"))) OR ("locating bug core snippets")).
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