Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc tra cau snippets" » "hoc tra code snippets", "hoc thai cau snippets", "hoc tren cau snippets", "hoc than cau snippets", "hoc tra sau snippets", "hoc ta cau snippets", "hoc tra cuu 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: (((("hoc tra cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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