Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
cham xuc » cam xuc, chat xuc, cham soc
cua tre » cua te, cuu tre, cua triet
xuc ban » duc ban, cuc ban, quoc ban
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
tay hoi » tay ho, tao hoi, tay thai
xay hoi » xa hoi, cay phoi, gay thoi
ty dang » ty xang, ky dang, ty hang
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty dang ((xay hoi) OR (tay hoi)). hieu van cham xuc ban hanh vai ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty dang ((xay hoi) OR (tay hoi)). hieu van cham xuc ban hanh vai ((cua tre) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty dang ((xay hoi) OR (tay hoi)). hieu van cham xuc ban hanh vai ((cua tre) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: su sach ty dang ((xay hoi) OR (tay hoi)). hieu van cham xuc ban hanh vai ((cua tre) or (cua tu))*.