Perhaps you should try some spelling variations:
phap thong » phap phong, phap chong, pho thong
kham thong » khap thong, khau thong, pham thuong
tri thuat » trien thuat, ki thuat, tri thuc
song khoa » dong khoa, hong khoa, luong khoa
khoa phap » khoa phau, khoan phai, khong phap
sanh tren » sach tren, lanh tren, sinh tren
tren thuc » trien thuc, tron thuc, trinh thuc
khoa kham » kho khan, khoa than
sanh tri » thanh tri, dinh tri, minh tri
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
so sanh » do sanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sanh tri thuat song khoa phap thong ) or ( so sanh tren thuc anh khoa kham thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sanh tri thuat song khoa phap thong ) OR ( so sanh tren thuc anh khoa kham thong )).
• Adding a wildcard symbol may retrieve word variants: (( so sanh tri thuat song khoa phap thong ) or ( so sanh tren thuc anh khoa kham thong ))*.