Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
phung cong » nhung cong, phong cong, nhung chong
tran tuan » tran quang, tran thanh, tranh luan
tran xuan » tran quang, tran van
dong toan » dung toan, bong toan, cong toan
toan cau » toan cao, toan ban, toan tap

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