Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chi cua toc snippets" » "chi cua code snippets", "chi cuc toc snippets", "khi cua toc snippets", "cuoi cua toc snippets", "chi cua hoc snippets", "chi cua toi snippets", "chi cua tuc 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: (((("chi cua toc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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