Perhaps you should try some spelling variations:
"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"
"van dat de snippets" » "van dao de snippets", "van dau de snippets", "dan dat de snippets", "van vat de snippets", "van hat de snippets", "van dat dien 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.

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