Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cua thuong » cua truong, cua phuong, ca thuong
cong thanh » dong thanh, cong trinh, truong thanh
hanh mang » nhanh mang, hanh trang, nhanh lang
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong ty
khan cap » khan ap, than cap, khoan cam

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: theo ((chieu sach) OR (chieu sang)) - hanh mang cua thuong ((cong tan) OR (cong thanh)) khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chieu sang)) - hanh mang cua thuong ((cong tan) OR (cong thanh)) khan cap~".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu sang)) - hanh mang cua thuong ((cong tan) OR (cong thanh)) khan cap*.