Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"chi cac nhan snippets" » "chi ca nhan snippets", "chi cac nha snippets", "chi cam nhan snippets", "cho cac nhan snippets", "chi cuc nhan snippets", "chon cac nhan snippets"

Try widening your search to All Fields.

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