Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc suat cao snippets" » "duc duat cao snippets", "duc luat cao snippets", "xac suat cao snippets", "duc suat lao snippets", "duc thuat cao snippets", "duc suat chat 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: (((("duc suat cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc suat cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc suat cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc suat cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.