Perhaps you should try some spelling variations:
tham thuoc » pham thuoc, tham thuc, nha thuoc
khoan phau » khoa phau, khoan phai, khoa chau
phau thong » phap thong, phan thong, phan thuong
khau thong » khau thuong, khap thong, khau tong
cach tham » sach tham, cach thuc, cach pha
thuoc cac » thuoc cuc, thuoc cao, thuoc dac
thua bach » thuat sach, thuat mach, thuat tach
bach khoa » anh khoa
khoa khau » khoa kham, khoa phau, khoa chau
sach dao » lanh dao
dao thua » dai thua, tao thuan, dao thi
tu cach » tu cac
te sach » toc 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 cach tham thuoc cac khoan phau thong ) or ( te sach dao thua bach khoa khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cach tham thuoc cac khoan phau thong ) OR ( te sach dao thua bach khoa khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu cach tham thuoc cac khoan phau thong ) or ( te sach dao thua bach khoa khau thong ))*.