Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
than tuong » than thuong, thay tuong, nhan tuong
sach tren » sach tien, sach tranh
tren tuan » tran tuan, trung tuan, tren trang
khoa than » khoa luan, hoa thai, hoa tan
khoa phau » hoa phan, khoa kham, khoa thu
anh khoa » doanh khoa, hang khoa
sach tri » sach tai, sach truc, sach bai
tri truc » tri thuc, thi truc, tri thuoc
truc anh » truc nano, truc tinh, truc bach
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach tren tuan anh khoa than tuong ) or ( tu sach tri truc anh khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tren tuan anh khoa than tuong ) OR ( tu sach tri truc anh khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach tren tuan anh khoa than tuong ) or ( tu sach tri truc anh khoa phau thong ))*.