Perhaps you should try some spelling variations:
phuong danh » phuong anh, phuong dinh, phuong hanh
thu phuong » thi phuong, thu huong, theo phuong
doi chieu » doc hieu, ho chieu, mot chieu
nhan dang » nhan dan, phan dang, tran dang
dang cua » dung cua, dong cua, mang cua
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban
doi chi » doi khi
cua thu » cua chu, ca thu, cua tu

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 (doi chi)) tinh - nhan dang cua thu phuong danh ((toan cau) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doi chi)) tinh - nhan dang cua thu phuong danh ((toan cau) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doi chi)) tinh - nhan dang cua thu phuong danh ((toan cau) or (toan tap))*.