Perhaps you should try some spelling variations:
bai thuoc » ban thuoc, bai hoc, cay thuoc
pho thong » he thong
thuoc cao » thuoc co, thuc cao, thuoc bao
thuc anh » thuc hanh, thuy anh, thu anh
dai thuc » dan thuc, dai thu, dai thua
anh khoa » doanh khoa, hang khoa
khoa pho » khoa phu, khoa khoa, khoa phau
cao khoa » lao khoa, bao khoa, cac khoa
vu bac » vu bach, xu bac, du bac
vu ban » tu ban, va ban

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

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