Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
nhung cong » dung cong, thong cong, hang cong
cung thi » dung thi, cang thi, cung tri
cung tai » dung tai, cung bai, cong tai
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cau » phan dau, phan cac, phan tu

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 ((cung thi) or (cung tai)) nhung cong tan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhieu tang)) - thanh ((cung thi) OR (cung tai)) nhung cong tan phan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhieu tang)) - thanh ((cung thi) or (cung tai)) nhung cong tan phan cau*.