Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chiet » thep thiet
theo chieu » theo tieu, ho chieu, theo chu
trung cua » truong cua, trung tuan, trung cap
dang cong » dung cong
cua dang » cua cong, cua ban
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chiet) OR (theo chieu)) tach - thanh trung cua dang cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chiet) OR (theo chieu)) tach - thanh trung cua dang cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chiet) OR (theo chieu)) tach - thanh trung cua dang cong tac toan cau*.