Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
phuong van » phung van, phong van, phuong lan
cua nhan » ca nhan, cua nha, cua nhung
cua ngan » cua ban, vu ngan, cua dan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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: theo chieu sach - canh tranh ((cua nhan) OR (cua ngan)) phuong van ((toan cau) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - canh tranh ((cua nhan) OR (cua ngan)) phuong van ((toan cau) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh tranh ((cua nhan) OR (cua ngan)) phuong van ((toan cau) or (toan ban))*.