Perhaps you should try some spelling variations:
tran thanh » van thanh, quan thanh
hanh trinh » canh tranh, hanh chinh
ban thanh » ban hanh, ban hang
trinh thi » trinh tai, dinh thi, trinh tu
hong cong » thong cong, hoang cong, chong cong
thi hong » thi cong, thi phuong, thi hanh
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 ((tran thanh) OR (ban thanh)) - hanh trinh thi hong cong dan ((toan cau) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doan ((tran thanh) or (ban thanh)) - hanh trinh thi hong cong dan ((toan cau) OR (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: doan ((tran thanh) or (ban thanh)) - hanh trinh thi hong cong dan ((toan cau) OR (toan tap))*.