Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan cho son snippets" » "luan chi son snippets", "luan che son snippets", "luan pho son snippets", "luan cho lon snippets", "luan cao son snippets", "luan cho san 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: (((("luan cho 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: (((("luan cho son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan cho son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan cho son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.