Perhaps you should try some spelling variations:
trinh cuong » trinh chuong, trinh cong, trinh duong
theo chiet » theo chieu
thep thiet » thep viet, thuyet thiet
hanh trinh » canh tranh, hanh chinh
cuong dung » tuong duong, ung dung, thong dung
dung cong » dung trong
cong san » cong tac
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: ((theo chiet) OR (thep thiet)) tach - hanh trinh cuong dung cong san ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chiet) OR (thep thiet)) tach - hanh trinh cuong dung cong san ((toan cau) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: ((theo chiet) OR (thep thiet)) tach - hanh trinh cuong dung cong san ((toan cau) or (toan cao))*.