Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sach » chieu sach, thien hach, hieu cach
nhung cong » dung cong, thong cong, nhung don
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
hang cong » dang cong, hang nong, bang cong
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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 cua ((nhung cong) OR (hang cong)) ((dan than) OR (dan chan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh trung cua ((nhung cong) or (hang cong)) ((dan than) OR (dan chan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh trung cua ((nhung cong) or (hang cong)) ((dan than) OR (dan chan)) cau*.