Perhaps you should try some spelling variations:
thanh trung » thanh tung
truong danh » truong dinh, truong anh, truong dang
chieu sang » chieu sach, chieu xanh, hieu lang
trong danh » trong doanh, trong anh, trong dan
tam thong » tam thuong, tao thong, nam thong
toan cao » toan ban, toan tap
hieu va » lieu va, hieu qua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu va)) - thanh trung tam thong ((trong danh) OR (truong danh)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (hieu va)) - thanh trung tam thong ((trong danh) OR (truong danh)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (hieu va)) - thanh trung tam thong ((trong danh) OR (truong danh)) toan cao*.