Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
nang cong » nang song, dang cong, bang cong
tranh va » tranh van, trang va, trinh va
cong san » cong tac
tuan thu » toan thuc
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 - canh tranh va nang cong san ((tuan thu) OR (van thu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh tranh va nang cong san ((tuan thu) OR (van thu))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh tranh va nang cong san ((tuan thu) OR (van thu))*.