Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi hoi nuoc snippets" » "phi hoc nuoc snippets", "phi roi nuoc snippets", "phi thon nuoc snippets", "phi loi nuoc snippets", "khi hoi nuoc snippets", "phi doi nuoc snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phi hoi nuoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi hoi nuoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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