Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan tan vo snippets" » "phan tan code snippets", "phan van vo snippets", "phan tap vo snippets", "phan lan vo snippets", "phan than vo snippets", "phan tan voi snippets", "phan tan va 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 tan vo 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 tan vo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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