Perhaps you should try some spelling variations:
thiet tach » chiet tach, thien hach, thuat tach
lanh tranh » canh tranh, lan tranh, hanh trinh
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
sang than » cang thang, dang thanh, sang tao
ho thiet » hoc thiet, hoa thiet, so thiet
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho thiet tach - lanh tranh cua ((hang cong) or (dung cong)) sang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho thiet tach - lanh tranh cua ((hang cong) OR (dung cong)) sang than cau.
• Adding a wildcard symbol may retrieve word variants: ho thiet tach - lanh tranh cua ((hang cong) or (dung cong)) sang than cau*.