Perhaps you should try some spelling variations:
thanh khung » thanh hung, thanh chuong, thanh phuong
dang trong » dung trong, dong trong, lang trong
khung cua » chung cua, khung luan, chung cu
trong dan » trong dang, trong san, trong tan
doc hieu » toc thieu, hoc thieu, hoc hien
cua dang » cua cong, cua ban
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (mot chieu)) sach - thanh khung cua dang trong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (mot chieu)) sach - thanh khung cua dang trong dan khan cap*.