Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao thu hoi snippets" » "dao thi hoi snippets", "dao phu hoi snippets", "dao tru hoi snippets", "dao thu hoai snippets", "dao thu phoi snippets", "dao thu hai 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: (((("dao thu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao thu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("dao thu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.