Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
thanh trung » thanh tung
theo chieu » ho chieu, theo chu, thi chieu
cua truong » cua trung, xuan truong, cac truong
khang chan » khang chien, quang chan
trung cua » truong cua, trung tuan, trung cap
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (theo tieu)) sach - thanh trung cua truong cong tan ((than cap) or (khang chan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sach - thanh trung cua truong cong tan ((than cap) OR (khang chan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (theo tieu)) sach - thanh trung cua truong cong tan ((than cap) or (khang chan))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (theo tieu)) sach - thanh trung cua truong cong tan ((than cap) or (khang chan))*.