Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
thuc hach » thuc hanh, chuc hach, thuc cach
hach toan » thanh toan, manh toan
toan toan » toan tran, thanh toan, toan doanh
sach truc » cach thuc, sach tren, sach thu
truc chua » truc chuoi, thuc cua, truc nha
benh khoa » benh kho, benh khong, benh hoc
khoa phau » hoa phan, khoa kham, khoa than
sach tri » sach tai, sach tren, sach bai
tri thuc » tri tue
te sach » toc sach
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach tri thuc hach toan toan thong ) or ( su sach truc chua benh khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tri thuc hach toan toan thong ) OR ( su sach truc chua benh khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tri thuc hach toan toan thong ) or ( su sach truc chua benh khoa phau thong ))*.