Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
chau tinh » cuu tinh, ha tinh, cua tinh
trung vap » trung cap, trung va, trung van
vap nhung » va nhung, ve nhung, voi nhung
ban thanh » ban hanh, ban hang
cua sinh » hoa sinh, va sinh
ban than » van thanh, ban hang, ban hanh

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: ho ((chau tinh) OR (cua sinh)) - thanh trung vap nhung cong ((ban than) OR (ban thanh)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chau tinh) or (cua sinh)) - thanh trung vap nhung cong ((ban than) OR (ban thanh)) cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chau tinh) or (cua sinh)) - thanh trung vap nhung cong ((ban than) OR (ban thanh)) cau*.