Perhaps you should try some spelling variations:
dang thuoc » dung thuoc
thuoc sinh » hoc sinh, thu sinh, thuoc sach
phau thong » phap thong, khau thong, phan thong
sach dang » sach dung, sach danh, sach nang
sinh khoa » sinh hoc, sinh hoat
khoa phau » hoa phan, khoa kham, khoa than
sach tren » sach tien, sach tranh
tren thuc » trien thuc, tron thuc, trinh thuc
toc sach » hoc sach, doc sach, thuoc sach
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
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 dang thuoc sinh khoa phau thong ) or ( toc sach tren thuc anh khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach dang thuoc sinh khoa phau thong ) OR ( toc sach tren thuc anh khoa phau thong ))*.