Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ivan cho can snippets" » "ivan cho code snippets", "van cho can snippets", "van chi can snippets", "san cho can snippets", "ivan cho cac snippets", "ivan cho phan snippets", "ivan cho cong 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: (((("ivan cho can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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