Perhaps you should try some spelling variations:
theo thong » theo phong, theo phuong, theo chuong
thunh thuc » thuong thuc, thuc thuc, thanh thuy
kham thong » khap thong, khau thong, pham thuong
cac thunh » cac thanh, cac chung, cac tinh
thuc cach » thuoc sach, truoc cach, thuc hanh
cach thoi » cac thoi, cach thuc, cach noi
thoi theo » thuoc theo, hoi thao, hoa theo
khoa kham » kho khan, khoa than
dac khoa » da khoa, dai khoa, dau khoa
cac thu » cach thuc, cac thoi
thu tue » thu thue, thu tuc, thu tu
tue dac » thue dat
su cac » su cao, su can, eu cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( su cac thunh thuc cach thoi theo thong ) OR ( tu cac thu tue dac khoa kham thong ))~.
• Adding a wildcard symbol may retrieve word variants: (( su cac thunh thuc cach thoi theo thong ) or ( tu cac thu tue dac khoa kham thong ))*.