Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung cuu voi snippets" » "dung cuu code snippets", "dung cua voi snippets", "dung cu voi snippets", "dung cau voi snippets", "dung cuu hoi snippets", "dung cuu noi snippets", "dung cuu vai 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: (((("dung cuu voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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