Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau lang son snippets" » "dau bang son snippets", "dau lanh son snippets", "dau quang son snippets", "dau nang song snippets", "dau bang song snippets", "dau anh son 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: (((("dau lang son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau lang son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau lang son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau lang son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.