Perhaps you should try some spelling variations:
chai tinh » chau tinh, thai tinh, cham tinh
dang cong » dung cong
tranh va » tranh van, trang va, trinh va
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than cau » toan cau, phan cau, than cap
va dang » van dang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chai tinh) or (chi minh)) - canh tranh va dang cong van than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chai tinh) OR (chi minh)) - canh tranh va dang cong van than cau.
• Adding a wildcard symbol may retrieve word variants: doi ((chai tinh) or (chi minh)) - canh tranh va dang cong van than cau*.