Perhaps you should try some spelling variations:
hanh trinh » canh tranh
zhang cong » hang cong, thanh cong, dang cong
ban thanh » ban hanh, ban hang
doan ban » doanh ban, toan ban, doan van
he zhang » wei zhang, hao zhang, hui zhang
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tai
toan tap » toan 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: doan ban thanh - ((hanh trinh) OR (hanh chinh)) he zhang cong dan ((toan cau) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doan ban thanh - ((hanh trinh) OR (hanh chinh)) he zhang cong dan ((toan cau) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: doan ban thanh - ((hanh trinh) OR (hanh chinh)) he zhang cong dan ((toan cau) or (toan tap))*.