Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam lang son snippets" » "nam dang son snippets", "nam nang son snippets", "nam tang son snippets", "nam nang song snippets", "nam bang song snippets", "nam 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: (((("nam 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: (((("nam lang son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam lang son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam lang son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.