Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
hieu quan » hieu qua, lieu quan, thien quan
chua nang » chuc nang, chua xang, kha nang
luong dai » luong tai, luong dao, duong dai
cua nang » cua dang, cua hang, cua nong
dai phan » dai han, dam phan, tai 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 xanh) or (hieu quan)) - thanh tung ((cua nang) OR (chua nang)) luong dai phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (hieu quan)) - thanh tung ((cua nang) OR (chua nang)) luong dai phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (hieu quan)) - thanh tung ((cua nang) OR (chua nang)) luong dai phan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (hieu quan)) - thanh tung ((cua nang) OR (chua nang)) luong dai phan cau*.