Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
chieu sach » chinh sach, chiet tach, chieu sang
van phuong » van phong, va phuong, van chuong
hanh dang » hanh dong, anh dang, hanh dung
dang van » hoang van, hang va
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, tra cau
ran cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((dieu hanh) or (chieu sach)) - hanh dang van phuong cong tan ((tran cau) or (ran cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dieu hanh) OR (chieu sach)) - hanh dang van phuong cong tan ((tran cau) OR (ran cau)).
• Adding a wildcard symbol may retrieve word variants: theo ((dieu hanh) or (chieu sach)) - hanh dang van phuong cong tan ((tran cau) or (ran cau))*.