Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
tuong cua » truong cua, huong cua, thong cua
tuong ca » truong ca, tuong cay, trong ca
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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 ((hieu manh) OR (hieu lang)) - thanh ((tuong ca) OR (tuong cua)) thuong cong dan chan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (hieu lang)) - thanh ((tuong ca) OR (tuong cua)) thuong cong dan chan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (hieu lang)) - thanh ((tuong ca) OR (tuong cua)) thuong cong dan chan cau*.