Perhaps you should try some spelling variations:
"dung duc trong snippets" » "dung duc truong snippets", "dung duoc trong snippets", "dung duc trung snippets", "duong duc trong snippets", "dang duc trong snippets", "dung du trong snippets", "dung duc trong slippers"
"dung cuc code snippets" » "dung cua code snippets", "dung cu code snippets", "dung cac code snippets", "dung cfd code snippets", "dung cuc 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 cuc code snippets") or ("dung duc trong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cuc code snippets") OR ("dung duc trong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cuc code snippets ) or ( dung duc trong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cuc code snippets") or ("dung duc trong snippets"))) or ("locating bug code snippets"))*.