Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
san cua » sang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
o hoi » co hoi, o hai, o hoa
o hoc » co hoc, mo hoc, so hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang ((o hoi) OR (o hoc)). hieu ve cam xuc van thanh san cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang ((o hoi) OR (o hoc)). hieu ve cam xuc van thanh san cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang ((o hoi) OR (o hoc)). hieu ve cam xuc van thanh san cua tre*.