Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tran chau » tranh chap, tran huu
theo cuu » theo chu, khao cuu, thao cua
cong tan » cong tac, cong san, cong thanh
tra cau » tra sau, ta cau, tra cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo cuu tinh - ((hanh tang) or (hanh chinh)) cua nhung cong tan ((tra cau) or (tran chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo cuu tinh - ((hanh tang) OR (hanh chinh)) cua nhung cong tan ((tra cau) OR (tran chau)).
• Adding a wildcard symbol may retrieve word variants: theo cuu tinh - ((hanh tang) or (hanh chinh)) cua nhung cong tan ((tra cau) or (tran chau))*.