Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tra du cua snippets" » "tra du code snippets", "tra tu cua snippets", "tran duc cua snippets", "tran duy cua snippets", "tra duy cua snippets", "tra dau cua snippets", "tra dum cua 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: (((("tra du cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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