Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung cap, dung cua
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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 cua) OR (trung tuan)) nhung cong tan than cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) OR (nhieu tang)) - thanh ((trung cua) OR (trung tuan)) nhung cong tan than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) OR (nhieu tang)) - thanh ((trung cua) OR (trung tuan)) nhung cong tan than cau*.