Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, thong thong, phong chong
tuong cua » truong cua, huong cua, thong cua
tong cong » trong cong, cong cong, dung cong
tan thanh » tran thanh, tang thanh, toan thanh
thanh cac » hanh cac, thanh bac, thanh ca

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh tuong cua ((thong cong) or (tong cong)) tan thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh tuong cua ((thong cong) OR (tong cong)) tan thanh cac.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh tuong cua ((thong cong) or (tong cong)) tan thanh cac*.