Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chu chon cac snippets" » "chu chon code snippets", "chu chan cac snippets", "chuan chon cac snippets", "chu khong cac snippets", "chu cho cac snippets", "chu thong cac snippets", "chu hoc 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: (((("chu chon cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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