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