Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dang cong » dung cong
tinh cua » trinh cua, sinh cua, tinh chat
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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: hoc ((((hieu manh) OR (thien thanh))) OR (chieu sang)) - hanh tinh cua dang cong tan toan tap~.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hieu manh) or (thien thanh))) or (chieu sang)) - hanh tinh cua dang cong tan toan tap*.