Perhaps you should try some spelling variations:
kham thong » khap thong, khau thong, pham thuong
thuoc dang » thuoc dung, thuoc khang, thuc dan
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa kham » kho khan, khoa than
dao thuoc » cao thuoc, tao thuoc, dang thuoc
dang khoa » dung khoa, hang khoa, dang khoi
phu thong » pho thong, phap thong, khau thong
bai thuc » bai thuoc, bao thuc, dai thuc
sach dao » lanh dao
khoa phu » khoa phau, khoa thu, hoa phu
su sach » so sach, vu sach

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cac bai thuc hanh khoa kham thong ) OR ( su sach dao thuoc dang khoa phu thong ))~.
• Adding a wildcard symbol may retrieve word variants: (( tu cac bai thuc hanh khoa kham thong ) or ( su sach dao thuoc dang khoa phu thong ))*.