Perhaps you should try some spelling variations:
khang khoa » hang khoa, khang kho, khong khoa
tham thuoc » pham thuoc, tham thuc, nha thuoc
tai thuoc » tri thuoc, bai thuoc, tac thuoc
thuoc ban » thuoc tan, thuoc dang, thu ban
pho thong » he thong
sach tham » sach nha
sach tai » sach bai, sach dao, sach xa
ban khoa » san khoa, van khoa, ba khoa
khoa pho » khoa phu, khoa khoa, khoa phau
so sach » so sanh, bo sach, co sach
vu sach » vu bach, su sach, vu khach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach tai thuoc ban khoa pho thong ) or ( vu sach tham thuoc khang khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach tai thuoc ban khoa pho thong ) OR ( vu sach tham thuoc khang khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( so sach tai thuoc ban khoa pho thong ) or ( vu sach tham thuoc khang khoa pho thong ))*.