Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
theo lich » thai lich, theo sach
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((theo lich) OR (thien hach)) - hanh trung cua nhung cong tan van ban~.
• Adding a wildcard symbol may retrieve word variants: toc ((theo lich) or (thien hach)) - hanh trung cua nhung cong tan van ban*.