Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hung thuc ky snippets" » "hung thu ky snippets", "thuong thuc ky snippets", "phuong thuc ky snippets", "hung phuc ky snippets", "hung thuc ke snippets", "hung thuc day snippets"

Try widening your search to All Fields.

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