Perhaps you should try some spelling variations:
doanh chung » doanh nhung, doanh thuong, doan hung
chieu sang » chieu sach, chieu xanh, nhieu tang
tran doanh » toan doanh, trai doanh, tran danh
chung cong » nhung cong, chong cong, phung cong
cong thanh » dong thanh, cong trinh, cong tan
hieu lang » hieu quang, nhieu tang, hieu van
hanh tran » hanh trang, thanh tran, hanh tram
toan cau » toan ban, toan tap, toan tai
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: ho ((hieu lang) OR (chieu sang)) - hanh tran doanh chung cong thanh ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - hanh tran doanh chung cong thanh ((toan cau) OR (toan cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) OR (chieu sang)) - hanh tran doanh chung cong thanh ((toan cau) or (toan cao))*".