Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung tam, tran tuan, truong thanh
dung cong » dung trong
cong tap » cuong tap, cong tac, cong tan
tap doan » tap quan
doan cau » toan cau, doan dau, doan cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sach)) - thanh ((trung tuan) OR (trung thanh)) dung cong tap doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - thanh ((trung tuan) OR (trung thanh)) dung cong tap doan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - thanh ((trung tuan) OR (trung thanh)) dung cong tap doan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - thanh ((trung tuan) OR (trung thanh)) dung cong tap doan cau*.