Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao khac son snippets" » "cao khach son snippets", "cao khai son snippets", "cao kha son snippets", "cao khach san snippets", "cao khanh son snippets", "cao thai 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: (((("cao khac 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: (((("cao khac son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao khac son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao khac son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.