Perhaps you should try some spelling variations:
thep thiet » thep viet, thuyet thiet
thiet nang » nhiet nang, thien nang, thi nang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua hang » cua dang, cua nhung, cua cong
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
tran cao » toan cao, tran chau, trang cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thep thiet nang - hanh tranh cua hang ((cong tan) or (cong san)) tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thep thiet nang - hanh tranh cua hang ((cong tan) OR (cong san)) tran cao.
• Adding a wildcard symbol may retrieve word variants: thep thiet nang - hanh tranh cua hang ((cong tan) or (cong san)) tran cao*.