Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung du cac snippets" » "dung du code snippets", "dung de cac snippets", "dung cu cac snippets", "dung cua cac snippets", "dung duc cac snippets", "dung tu cac snippets", "dung do cac 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: (((("python using java snippets") or ("dung du cac snippets"))) or ("locating bug core snippets"))~.
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