Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhat de toc snippets" » "nhat de code snippets", "nhat ve toc snippets", "nhat le toc snippets", "chat deo toc snippets", "nhat de hoc snippets", "nhat de ton snippets", "nhat de thuoc 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: (((("nhat de toc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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