Perhaps you should try some spelling variations:
"dung dung code snippets" » "duong dung code snippets", "ung dung code snippets", "dung ung code snippets", "dung dung cong snippets", "dung dung co snippets", "dung dung de snippets", "dung dung code slippers"
"dung cac trieu snippets" » "dung cac tieu snippets", "dung cau trieu snippets", "dung cac kieu snippets", "luong cac trieu snippets", "dung cho trieu snippets", "dung tai trieu snippets", "dung cac trieu 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 dung code snippets") or ("dung cac trieu snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dung code snippets") OR ("dung cac trieu snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dung code snippets ) or ( dung cac trieu snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dung code snippets") or ("dung cac trieu snippets"))) or ("locating bug code snippets"))*.