Perhaps you should try some spelling variations:
thuong duong » tuong duong, thuong luong, chuong duong
theo chieu » theo tieu, ho chieu, theo chu
duong toan » dung toan, duong tan, duong tuan
mot chieu » doi chieu, ho chieu
doanh cua » doanh luan
toan phan » thanh phan, toan ban, hoa phan
manh cua » ban cua
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: ((mot chieu) or (theo chieu)) xanh - canh ((doanh cua) or (manh cua)) thuong duong toan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) xanh - canh ((doanh cua) OR (manh cua)) thuong duong toan phan cau.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) xanh - canh ((doanh cua) or (manh cua)) thuong duong toan phan cau*.