Perhaps you should try some spelling variations:
cong thuong » hang thuong
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
thuong dan » huong dan, thuong han, thuong dam
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
thanh cac » hanh cac, thanh bac, thanh ca
than cap » khan cap, thanh lap, than cua

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 manh) or (chieu sang)) - thanh trung cua cong thuong dan ((than cap) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - thanh trung cua cong thuong dan ((than cap) OR (thanh cac)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - thanh trung cua cong thuong dan ((than cap) or (thanh cac))*.