Perhaps you should try some spelling variations:
"dung datng code snippets" » "dung dang code snippets", "dung dat code snippets", "dung dan code snippets", "dung datng code slippers"
"thong cad code snippets" » "thong cac code snippets", "thong cap code snippets", "thong cau code snippets", "thong cfd code snippets", "thong cad model snippets", "thong cad code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("thong cad code snippets") or ("dung datng code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong cad code snippets") OR ("dung datng code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong cad code snippets ) or ( dung datng code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong cad code snippets") or ("dung datng code snippets"))) or ("locating bug code snippets"))*.