Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
dong hoa » dong hoc, dong co
van hanh » van thanh, ban hanh, van anh
chua tri » chu tri, chua trieu, chua tivi
ky dong » ly dong, ky dang, ky cong
so sanh » do sanh
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu tu » chieu tu, hieu tuc, hien tu
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
hanh va » hang va, hanh vi
va chua » vua chua, ca chua, va chu
tu cam » tu cham, tu cac, tu nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (so sanh)) ky dong hoa hoi. hieu tu cam luc van hanh va chua tri~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (so sanh)) ky dong hoa hoi. hieu tu cam luc van hanh va chua tri.
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (so sanh)) ky dong hoa hoi. hieu tu cam luc van hanh va chua tri*.