Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tang » hanh trang, anh tang, hanh mang
cong cong » cong dong, trong cong, dung cong
tang cua » mang cua, hang cua, tang luan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chinh sach) or (hieu lang)) - hanh tang cua cong cong thanh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chinh sach) OR (hieu lang)) - hanh tang cua cong cong thanh toan tap*.