Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran doc cho snippets" » "tran doc code snippets", "tran duc cho snippets", "than doc cho snippets", "tranh duoc cho snippets", "tran dac cho snippets", "tran hoc cho snippets", "tran doc cao 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: (((("tran doc cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran doc cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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