Perhaps you should try some spelling variations:
thanh trung » thanh tung
phuong cong » phong cong, phung cong, phuong hoang
phuong dong » phuong dung, phuong hoang, chuong duong
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
trung cac » truong cac, trung cap, trong cac
tap doanh » tap doan, lap doanh, tap danh
doanh bao » doanh bat, doanh ban, doanh bac

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 sang) or (chieu sach)) - thanh trung cac ((phuong cong) OR (phuong dong)) tap doanh bao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - thanh trung cac ((phuong cong) OR (phuong dong)) tap doanh bao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu sach)) - thanh trung cac ((phuong cong) OR (phuong dong)) tap doanh bao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu sach)) - thanh trung cac ((phuong cong) OR (phuong dong)) tap doanh bao*.