Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu hach » thien hach, chieu sach, hieu cach
hoc thieu » toc thieu, hoc hien
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu hach - thanh trung ((cua dung) OR (cua dang)) cong dan ((than cau) OR (than cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu hach - thanh trung ((cua dung) OR (cua dang)) cong dan ((than cau) or (than cap))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu hach - thanh trung ((cua dung) OR (cua dang)) cong dan ((than cau) or (than cap))*.