Perhaps you should try some spelling variations:
khong trong » khoang trong, thong trong, phong trong
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
van tuan » van quan, anh tuan

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 cua khong trong ((van tuan) OR (van ban)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sach)) - canh tranh cua khong trong ((van tuan) OR (van ban)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sach)) - canh tranh cua khong trong ((van tuan) OR (van ban)) cau*".