Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
xuc ban » duc ban, cuc ban, quoc ban
cuu san » cuu van, cua san, cuu ban
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 y nang x hoi. hieu van nam ((xuc ban) or (cuu san)) hanh vi ((cua te) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. hieu van nam ((xuc ban) OR (cuu san)) hanh vi ((cua te) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu van nam ((xuc ban) or (cuu san)) hanh vi ((cua te) or (cua tre))*.