Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tu nhan cac snippets" » "tu nhan code snippets", "tu nhan cach snippets", "tu phan cac snippets", "tu nhan mac snippets", "tue nhan cac snippets", "cu nhan cac snippets", "tu ngan 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: (((("tu nhan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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