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