Perhaps you should try some spelling variations:
thanh khung » thanh hung, thanh chuong, thanh phuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
khung luan » chung luan, dung luan, hang luan
nhung cong » dung cong, thong cong, hang cong
hung cong » hung cuong, phung cong, dung cong
sang tao » hang tai
tao cao » bao cao, toan cao

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 khung luan ((hung cong) OR (nhung cong)) sang tao cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - thanh khung luan ((hung cong) OR (nhung cong)) sang tao cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh khung luan ((hung cong) OR (nhung cong)) sang tao cao*.