Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan van o snippets" » "phan van code snippets", "pham van o snippets", "thanh van o snippets", "luan van o snippets", "phan van do snippets", "phan van ho snippets", "phan van 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: (((("phan van o snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan van o snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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