Perhaps you should try some spelling variations:
chau thong » chau phong, khau thong, chan thuong
dang thuoc » dung thuoc
thuoc sinh » hoc sinh, thu sinh, thuoc sach
thay thuc » thai thuc, tham thuc, thach thuc
khoa chau » khoai chau, khoa phau, khoa cham
sach dang » sach dung, sach danh, sach nang
sinh khoa » sinh hoc, sinh hoat
pho thong » he thong
bac thay » bac ha
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
khoa pho » khoa phu, khoa khoa, khoa phau
tu sach » thu sach, su sach, te sach
tu bac » tu ban, tu cac, tu bat

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu bac thay thuc anh khoa chau thong ) or ( tu sach dang thuoc sinh khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu bac thay thuc anh khoa chau thong ) OR ( tu sach dang thuoc sinh khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu bac thay thuc anh khoa chau thong ) or ( tu sach dang thuoc sinh khoa pho thong ))*.