Perhaps you should try some spelling variations:
"nang viet code snippets" » "anh viet code snippets", "nang viet co snippets", "nang viet some snippets", "nang viet code slippers"
"dung va code snippets" » "dung va 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: (((("nang viet code snippets") or ("dung va code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang viet code snippets") OR ("dung va code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang viet code snippets ) or ( dung va code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang viet code snippets") or ("dung va code snippets"))) or ("locating bug code snippets"))*.