Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"coc dat hang snippets" » "coc dat khanh snippets", "coc dat quang snippets", "coc tat thang snippets", "hoc dat hang snippets", "chon dat hang snippets", "duoc dat hang snippets"

Try widening your search to All Fields.

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