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