Perhaps you should try some spelling variations:
"dung truan doi snippets" » "dung truong doi snippets", "dung luan doi snippets", "dung trung doi snippets", "dung truyen doi snippets", "dung quan doi snippets", "dung khuan doi snippets"
"dung ung code snippets" » "dung trung code snippets", "dung quang code snippets", "dung chung code snippets", "dung ung co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung ung code snippets") or ("dung truan doi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ung code snippets") OR ("dung truan doi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ung code snippets ) or ( dung truan doi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ung code snippets") or ("dung truan doi snippets"))) or ("locating bug code snippets"))*.