Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang toi da snippets" » "tang tai da snippets", "tang thi da snippets", "tang loi da snippets", "tang toi la snippets", "tang thoi dai 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 toi da 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 toi da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang toi da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang toi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.