Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tran so phan snippets" » "tran si phan snippets", "tran sy phan snippets", "than so phan snippets", "tran co phan snippets", "tran hoc phan snippets", "tran hoa phan snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tran so phan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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