Perhaps you should try some spelling variations:
"dung hoc dat snippets" » "dong hoc dat snippets", "dung thuoc dat snippets", "trung hoc dat snippets", "dung hoc dan snippets", "dung hoc dai snippets", "dung hoc phat snippets", "dung hoc dat slippers"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets", "dung cac code slippers"
"locating bug code snippets" » "locating bug code slippers", "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 hoc dat snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung hoc dat snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung hoc dat snippets ) or ( dung cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hoc dat snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))*.