Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
tong cong » trong cong, cong cong, dung cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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 tieu sach - thanh ((trung cua) OR (trung cap)) tong cong tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - thanh ((trung cua) OR (trung cap)) tong cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - thanh ((trung cua) OR (trung cap)) tong cong tan toan cau*.