Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
cong cong » cong dong, trong cong, dung cong
hoc dieu » hoc thieu, hoc hien
hoc tieu » hoc thieu, hoc sieu, hoc tieng
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: ((hoc dieu) or (hoc tieu)) tinh - ((hanh trang) or (canh tranh)) cua cong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc tieu)) tinh - ((hanh trang) OR (canh tranh)) cua cong cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc tieu)) tinh - ((hanh trang) or (canh tranh)) cua cong cong san toan cau*.