Perhaps you should try some spelling variations:
khoan phan » khoan phai, khoan thanh, hoa phan
khap thong » phap thong, khau thong, khac thuong
phan cong » thanh cong
khoa khap » khoa kham, khoa khac, kho khan
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
thuc cac » thuc cach, tuc cac, phuc cac
sach han » sach tham, sach danh, sach nang
han thuc » nhan thuc, phan thuc, dan thuc
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
te sach » toc sach

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: (( te sach dao thuc cac khoan phan cong ) OR ( te sach han thuc anh khoa khap thong ))~.
• Adding a wildcard symbol may retrieve word variants: (( te sach dao thuc cac khoan phan cong ) or ( te sach han thuc anh khoa khap thong ))*.