Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hoa thiet » hoc thiet, toan thiet, hoa viet
trang cua » tranh cua, tang cua, trung cua
cong cong » cong dong, trong cong, dung cong
ho thiet » hoc thiet, so thiet, hoc thieu
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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: ((ho thiet) OR (hoa thiet)) tach - hanh trang cua cong cong tac ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho thiet) OR (hoa thiet)) tach - hanh trang cua cong cong tac ((toan cau) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: ((ho thiet) OR (hoa thiet)) tach - hanh trang cua cong cong tac ((toan cau) or (toan cao))*.