Perhaps you should try some spelling variations:
dong hoa » dong hoc, dong co
bo sach » co sach, hoc sach
hanh va » hanh vi
xuc van » duc van, luc van, vuc van
hieu tu » chieu tu, hieu tuc, hien tu
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky dong » ly dong, ky dang, ky cong
so sanh » do sanh
cua tre » cua te, cuu tre, cua triet
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: ((bo sach) or (so sanh)) ky dong hoa hoi. hieu tu cam xuc van ((hanh va) OR (hang va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bo sach) OR (so sanh)) ky dong hoa hoi. hieu tu cam xuc van ((hanh va) OR (hang va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bo sach) or (so sanh)) ky dong hoa hoi. hieu tu cam xuc van ((hanh va) OR (hang va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: ((bo sach) or (so sanh)) ky dong hoa hoi. hieu tu cam xuc van ((hanh va) OR (hang va)) cua tre*.