Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran hoc cho snippets" » "tran hoc code snippets", "toan hoc cho snippets", "than hoc cho snippets", "trac hoc cho snippets", "tran hoc cao snippets", "tran hoc pho snippets", "tran hoc co 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: (((("python using java snippets") or ("tran hoc cho snippets"))) or ("locating bug core snippets"))~.
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