Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
trung quan » truong quan, trung tuan, truong quang
trong quan » thong quan, tong quan, thong quang
cong ban » cong bang, cong san, cong tan
ban phan » ban phap, van phan, ban than
phan cac » nhan cach, phan dau, phan lap

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 (chieu sang)) - thanh ((trung quan) OR (trong quan)) trong cong ban phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - thanh ((trung quan) OR (trong quan)) trong cong ban phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chieu sang)) - thanh ((trung quan) OR (trong quan)) trong cong ban phan cac".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - thanh ((trung quan) OR (trong quan)) trong cong ban phan cac*.