Perhaps you should try some spelling variations:
tranh hang » trinh han, tran hoang, tran hong
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tinh - ((canh tranh) or (tranh hang)) cua dung cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - ((canh tranh) OR (tranh hang)) cua dung cong tan tran cau.
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - ((canh tranh) or (tranh hang)) cua dung cong tan tran cau*.