Perhaps you should try some spelling variations:
chap thuong » chan thuong, phan thuong, pham thuong
tham thuoc » pham thuoc, tham thuc, nha thuoc
khang khoa » hang khoa, khang kho, khong khoa
khau thong » khau thuong, khap thong, khau tong
thuat lenh » thuat lanh, thuat kinh, thuat hinh
sach tham » sach nha
khoa khau » khoa kham, khoa phau, khoa chau
thu thuat » phau thuat, thu hut
sach thu » sach thue, sach thieu, cach thuc
lenh nha » benh nhan, lanh nham, hanh nha
nha chap » nhap thap, nhan chan, nhan chat
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach tham thuoc khang khoa khau thong ) or ( tu sach thu thuat lenh nha chap thuong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tham thuoc khang khoa khau thong ) OR ( tu sach thu thuat lenh nha chap thuong ))*.