Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cach tra cuu snippets" » "cach tra code snippets", "cach ta cuu snippets", "vach tran cuu snippets", "cac tro cuu snippets", "cach tra cau snippets", "cach trau cua snippets", "cach trua cua 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: (((("cach tra cuu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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