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 cac than snippets" » "luong cac than snippets", "dung cho than snippets", "dung tai than snippets", "dung cac thanh snippets", "dung cac nhan snippets", "dung cac phan snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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 than snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dung code snippets") OR ("dung cac than snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dung dung code snippets ) or ( dung cac than snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dung code snippets") or ("dung cac than snippets"))) or ("locating bug code slippers"))*.