Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
trung tuan » trung thanh, trung tam, tran tuan
cong thanh » dong thanh, cong trinh, cong tan
thanh than » thanh thanh, thanh thang, thanh toan
doi chieu » doc hieu, ho chieu, mot chieu
trung cua » truong cua, trung cap, dung cua
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 chieu) OR (doi chi)) sach - thanh ((trung cua) or (trung tuan)) phuong cong thanh than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) sach - thanh ((trung cua) OR (trung tuan)) phuong cong thanh than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doi chi)) sach - thanh ((trung cua) or (trung tuan)) phuong cong thanh than cap".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doi chi)) sach - thanh ((trung cua) or (trung tuan)) phuong cong thanh than cap*.