Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh lap » thanh san, phan lap, thanh hai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
xuc van » duc van, luc van, vuc van
lap cua » lai cua, tap cua, lam cua
cua tre » cua te, cuu tre, cua triet
nang o » nang co, nang ho, nang ro
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
o hoi » co hoi, o hoc, o hai

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 ky nang o hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh lap cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang o hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh lap cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang o hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh lap cua tre*.