Perhaps you should try some spelling variations:
phuong dong » phuong dung, phuong hoang, chuong duong
duoc phuong » duong phuong, hoc phuong, dung phuong
tranh duoc » tranh cuoc, trinh duoc, tran duc
hieu lang » chieu sang, hieu quang, nhieu tang
anh tranh » canh tranh, lanh tranh, anh thanh
nho hieu » nha hieu, nho sieu, nhu hieu
dong tai » dung tai, luong tai, cong tac
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho hieu lang - anh tranh duoc phuong dong tai ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho hieu lang - anh tranh duoc phuong dong tai ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: nho hieu lang - anh tranh duoc phuong dong tai ((toan cau) or (toan cao))*.