Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang luat da snippets" » "nang suat da snippets", "tang luat da snippets", "nganh luat da snippets", "nang luat dat snippets", "nang luat dan snippets", "nang luat dau 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: (((("nang luat da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang luat da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang luat da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang luat da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.