Perhaps you should try some spelling variations:
thien chinh » tien thinh, thien chien, thi chinh
hanh trinh » canh tranh, hanh chinh
cua nhung » va nhung
cua hang » cua dang, cua cong, cua ban
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thien chinh sach - hanh trinh ((cua hang) OR (cua nhung)) ((cong tan) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thien chinh sach - hanh trinh ((cua hang) OR (cua nhung)) ((cong tan) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thien chinh sach - hanh trinh ((cua hang) OR (cua nhung)) ((cong tan) or (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: thien chinh sach - hanh trinh ((cua hang) OR (cua nhung)) ((cong tan) or (cong san)) toan cau*.