Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
nang cong » nang song, dang cong, bang cong
trinh va » trinh van, trinh vat, trinh ve
van tuan » van ban, anh tuan
van quan » van ban
va nang » van nang, da nang, cam nang

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 xanh) or (chieu sach)) - canh trinh va nang cong ((van tuan) OR (van quan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sach)) - canh trinh va nang cong ((van tuan) OR (van quan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sach)) - canh trinh va nang cong ((van tuan) OR (van quan)) cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sach)) - canh trinh va nang cong ((van tuan) OR (van quan)) cau*.