Perhaps you should try some spelling variations:
guong hieu » huong hieu, thuong hieu, dong hieu
sach truc » cach thuc, sach tren, sach thu
dan guong » dan phuong, doan cuong, dang cuong
hieu thuc » hieu thuoc, hien thuc, hieu tuc
thuc giai » thuoc giao, hoc giai, thuc thai
sach tri » sach tai, sach tren, sach bai
tre dan » tre dang, te dan, tre can

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach tri) OR (sach truc)) tre dan guong hieu thuc giai~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach tri) OR (sach truc)) tre dan guong hieu thuc giai*.