Perhaps you should try some spelling variations:
luan phuong » lan phuong, quang phuong, doan phuong
thanh tung » thanh cong
cong thanh » dong thanh, cong trinh, truong thanh
tung luan » dung luan, tang luan, tong luan
chi sach » chinh sach, chieu sach, co sach
cong tan » cong tac, cong san, cong ty
than cap » khan cap, thanh lap, thanh cac
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - thanh tung luan phuong ((cong tan) or (cong thanh)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - thanh tung luan phuong ((cong tan) OR (cong thanh)) than cap.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - thanh tung luan phuong ((cong tan) or (cong thanh)) than cap*.