Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sach » chieu sach, thien hach, hieu cach
trung tran » trung tuan, trung thanh, trung tam
tran trong » gian trong, quan trong, tran hong
hoc thieu » toc thieu, hoc hien
khoan cam » khoa cam, khoan va, phan cam
cong san » cong tac
khan cap » khan ap, phan cac, phan cau
than cap » thanh lap, thanh cac, than cua

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 sach - thanh trung tran trong cong san ((((khan cap) OR (than cap))) OR (khoan cam))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh trung tran trong cong san ((((khan cap) OR (than cap))) or (khoan cam))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh trung tran trong cong san ((((khan cap) OR (than cap))) or (khoan cam))*.