Perhaps you should try some spelling variations:
thanh chuong » thanh huong, thanh cong, nhanh chong
chieu sach » chinh sach, chiet tach, chieu sang
chuong cua » chuong chua, huong cua, chung cua
dung huong » dung thuong, dung phuong, dong huong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua dung » cua dang, cua dong, qua dung
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.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu sach)) - thanh chuong cua dung huong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu sach)) - thanh chuong cua dung huong dan chan cau*.