Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
nhung tuong » nhung huong, hung vuong, nhung cong
doi chieu » doi chi, ho chieu, mot chieu
nhan dinh » nhan sinh, phan dinh, nhan tinh
doc hieu » toc thieu, hoc thieu, hoc hien
dinh cuu » dinh chi
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) xanh - nhan dinh cuu ((nhung tuong) OR (nhung phuong)) van toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doc hieu)) xanh - nhan dinh cuu ((nhung tuong) or (nhung phuong)) van toan cau~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doc hieu)) xanh - nhan dinh cuu ((nhung tuong) or (nhung phuong)) van toan cau*.