Perhaps you should try some spelling variations:
"van nang cong snippets" » "van nang song snippets", "van dang cong snippets", "van hang cong snippets", "van quang cong snippets", "van ban cong snippets", "van dong cong snippets"
"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"
"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 cac code snippets") or ("van nang cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cac code snippets") OR ("van nang cong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac code snippets ) or ( van nang cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac code snippets") or ("van nang cong snippets"))) or ("locating bug code snippets"))*.