Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi ngan cau snippets" » "thi ngan code snippets", "tai ngan cau snippets", "thu ngan cau snippets", "thi nga cau snippets", "thi ngan can snippets", "thi nganh dau snippets", "thi nhanh cau 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: (((("thi ngan cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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