Perhaps you should try some spelling variations:
kham thong » khap thong, khau thong, pham thuong
khoa thong » hoa thong, thoai thong, pho thong
hanh khoa » hang khoa, hanh hoa, han khoa
khoa khoa » hoa khoa, khuan khoa, khoa hoc
khoa kham » kho khan, khoa than
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
xac thai » rac thai, sac thai, xa thai
thai tuc » thai thuc, thai thuy, thai hoc
anh khoa » doanh khoa, hang khoa
vu sach » vu bach, su sach, vu khach
tuc anh » tuc hanh, duc anh, tu anh
su xac » pu xac, su cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu sach dao thuc hanh khoa khoa thong ) or ( su xac thai tuc anh khoa kham thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach dao thuc hanh khoa khoa thong ) OR ( su xac thai tuc anh khoa kham thong )).
• Adding a wildcard symbol may retrieve word variants: (( vu sach dao thuc hanh khoa khoa thong ) or ( su xac thai tuc anh khoa kham thong ))*.