Perhaps you should try some spelling variations:
thanh tung » thanh cong
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
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 chu tinh - ((hanh tranh) OR (thanh tung)) va nhung cong san ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu tinh - ((hanh tranh) or (thanh tung)) va nhung cong san ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - ((hanh tranh) or (thanh tung)) va nhung cong san ((toan cau) OR (toan cao))*.