Perhaps you should try some spelling variations:
sinh thuoc » sinh thuc, sinh hoc, sinh duoc
thuoc dang » thuoc dung, thuoc khang, thuc dan
thuoc sach » hoc sach, nuoc sach, thuat sach
khau thong » khau thuong, khap thong, khau tong
thuat san » thuat toan, thuat song, thuat lanh
dang khoa » dung khoa, hang khoa, dang khoi
pho thong » he thong
tai thuoc » tri thuoc, bai thuoc, tac thuoc
sach phap » sach phat, sach nha, sach tham
phap khau » nhap khau, phap khac, phap khang
san sinh » van sinh, san kinh, san tinh
khoa pho » khoa phu, khoa khoa, khoa phau
sach tai » sach bai, sach tham, sach dao
so sach » so sanh, bo sach, co sach

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

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