Perhaps you should try some spelling variations:
chua xang » chua nang, chu bang, chua dong
hanh hang » thanh hang, hang hang, hanh han
dung cong » dung trong
hang cua » mang cua, hang ca, huong cua
cua dung » cua dang, cua dong, qua dung
cong bai » cuong bai, cong hai, cung bai
bai toan » bai tap
toan ban » van ban
chuc » thuc, chu, phuc

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: sua ((chua xang) or (chuc nang)) - hanh hang cua dung cong bai toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sua ((chua xang) OR (chuc nang)) - hanh hang cua dung cong bai toan ban.
• Adding a wildcard symbol may retrieve word variants: sua ((chua xang) or (chuc nang)) - hanh hang cua dung cong bai toan ban*.