Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan duc voi snippets" » "pham duc voi snippets", "phan tu voi snippets", "phan dau voi snippets", "phan duc loi snippets", "phan dua voi snippets", "phan duc vui snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan duc voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan duc voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("phan duc voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.