Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can da hoa snippets" » "can dai hoa snippets", "ban da hoa snippets", "dan da hoa snippets", "can da khoa snippets", "can day hoa 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: (((("can da hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can da hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can da hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can da hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.