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"
"cong bang code snippets" » "cuong bang code snippets", "dong bang code snippets", "hong bang code snippets", "cong bang cong snippets", "cong bang che snippets", "cong bang cot snippets", "cong bang 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: (((("dung datng code snippets") or ("cong bang code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung datng code snippets") OR ("cong bang code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung datng code snippets ) or ( cong bang code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung datng code snippets") or ("cong bang code snippets"))) or ("locating bug code snippets"))*.