Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang khu cau snippets" » "tai khu cau snippets", "tang ha cau snippets", "tang thi cau snippets", "tang nhu cau snippets", "tang chua cau 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: (((("tang khu 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: (((("tang khu cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang khu cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang khu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.