Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh cho ve snippets" » "trinh cho code snippets", "trinh chao ve snippets", "trinh co ve snippets", "trinh chat ve snippets", "trinh cho he snippets", "trinh nho ve snippets", "trinh cho va 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: (((("trinh cho ve snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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