Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sach » chieu sach, thien hach, hieu cach
cua thuong » cua truong, cua phuong, ca thuong
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
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: hoc thieu sach - thanh trung cua thuong ((cong thanh) or (cong san)) ((than cap) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh trung cua thuong ((cong thanh) OR (cong san)) ((than cap) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh trung cua thuong ((cong thanh) or (cong san)) ((than cap) or (toan cau))*.