Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khau cao son snippets" » "khau hao son snippets", "nha cao son snippets", "khau tai son snippets", "khau cao cong 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: (((("khau cao 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: (((("khau cao son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khau cao son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khau cao son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.