Perhaps you should try some spelling variations:
sach trinh » sach tranh, hanh trinh, sach kinh
chinh khoa » chinh cho, sinh khoa, chi khoa
khoa thong » hoa thong, thoai thong, pho thong
khoan kham » khoa kham, khoanh khac, khoan cam
kham thong » khap thong, khau thong, pham thuong
trinh thi » trinh tai, dinh thi, trinh tu
thi hanh » thi thanh
sach tri » sach tai, sach tren, sach truc
te sach » toc sach
tu sach » thu sach, su sach, tu cach
tue cac » tu cac, tuc cac, te cac

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 trinh thi hanh chinh khoa thong ) or ( tu sach tri tue cac khoan kham thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach trinh thi hanh chinh khoa thong ) OR ( tu sach tri tue cac khoan kham thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach trinh thi hanh chinh khoa thong ) or ( tu sach tri tue cac khoan kham thong ))*.