Perhaps you should try some spelling variations:
"dung vietnc code snippets" » "dung viet code snippets", "dung viec code snippets", "dung vien code snippets", "dung viettnc code snippets", "dung viectnc code snippets", "dung vientnc code snippets"
"dung vie code snippets" » "dung viet code snippets", "dung viec code snippets", "dung vien code snippets"
"locating bug core snippets" » "locating bug 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 vie code snippets") or ("dung vietnc code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung vie code snippets") OR ("dung vietnc code snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung vie code snippets ) or ( dung vietnc code snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vie code snippets") or ("dung vietnc code snippets"))) or ("locating bug core snippets"))*.