Perhaps you should try some spelling variations:
phat thuoc » pham thuoc, phap thuoc, nha thuoc
thuoc cach » thuoc sach, thuc cach, truoc cach
than thong » than thuong, toan thong, tran thong
sach phat » sach nha, sach tham, cach pha
cach khoa » bach khoa, cac khoa, cac khoan
khoa than » khoa luan, hoa thai, hoa tan
xanh khoa » anh khoa, doanh khoa, nganh khoa
hoa thong » hoa trong, hoa khong, hoa thon
sach tri » sach tai, sach tren, sach truc
thu xanh » thu canh, thu anh, thu oanh
khoa hoa » khoa khoa, khoa hoc, khoa hoi
su sach » vu sach
so sach » so sanh, bo sach, co sach
tri thu » tri thuc, thi thu, tri phu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach phat thuoc cach khoa than thong ) or ( so sach tri thu xanh khoa hoa thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach phat thuoc cach khoa than thong ) OR ( so sach tri thu xanh khoa hoa thong ))*.