Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan giap voi snippets" » "tan giao voi snippets", "toan giao voi snippets", "toan giai voi snippets", "tan gian voi snippets", "tan gia moi snippets", "tan giap thi 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: (((("tan giap 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: (((("tan giap voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan giap voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan giap voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.