Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
tang cuong » nang luong
cuong van » duong van, luong van, muong van
tranh ca » tranh cua, tranh cac, tranh cai
ca tang » cao tang, ha tang, gia tang
van tai » von tai, van tuan
tai cau » tai cac, tai cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chieu xanh)) - canh tranh ca tang cuong van tai cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu xanh)) - canh tranh ca tang cuong van tai cau.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu xanh)) - canh tranh ca tang cuong van tai cau*.