Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao tu hoa snippets" » "cao thu hoa snippets", "co tu hoa snippets", "cao su hoa snippets", "cao tu khoa snippets", "cao tu hoai snippets", "cao tuy 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: (((("cao tu 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: (((("cao tu hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao tu hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao tu hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.