Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung van man snippets" » "duong van man snippets", "dung va man snippets", "dang van man snippets", "dung van manh snippets", "dung van ban snippets", "dung van han snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung van man snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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