Perhaps you should try some spelling variations:
tcanh tranh » thanh thanh, can tranh, lanh tranh
hoang trong » khoang trong, hoang vuong, cong trong
trong quang » truong quang, thong quang, trong quan
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
quang toan » quang tuan, quang tran, quang doan
cua hoang » cua hang, quan hoang, tuan hoang
toan ban » van ban

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 tranh) or (tcanh tranh)) cua hoang trong quang toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sach)) - ((canh tranh) OR (tcanh tranh)) cua hoang trong quang toan ban.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sach)) - ((canh tranh) or (tcanh tranh)) cua hoang trong quang toan ban*.