Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
trung tuan » trung thanh, tran tuan, truong thanh
nhung cong » dung cong, thong cong, hang cong
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
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: theo ((chiet tach) OR (chieu sach)) - thanh ((trung tuan) or (trung tam)) nhung cong van than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chiet tach) OR (chieu sach)) - thanh ((trung tuan) OR (trung tam)) nhung cong van than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chiet tach) OR (chieu sach)) - thanh ((trung tuan) or (trung tam)) nhung cong van than cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chiet tach) OR (chieu sach)) - thanh ((trung tuan) or (trung tam)) nhung cong van than cau*.