Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
trung cuu » trung cua, trung cau, truong cua
cuu nong » cuu cong, cuu nang, cuu tong
cong tac » cong ty
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (nhieu tang)) - thanh trung cuu nong ((cong san) or (cong tac)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhieu tang)) - thanh trung cuu nong ((cong san) OR (cong tac)) phan dau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhieu tang)) - thanh trung cuu nong ((cong san) or (cong tac)) phan dau*.