Perhaps you should try some spelling variations:
"dung vung code snippets" » "dung ung code snippets", "dung dung code snippets", "dung hung code snippets", "dung vung co snippets"
"dung a robot snippets" » "dung _ robot snippets", "dung tao robot snippets", "dung tay robot snippets", "dung va robot snippets", "dung ha robot snippets", "dung ai robot snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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

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