Perhaps you should try some spelling variations:
van chat » cao chat
chat luc » chat xuc, chat lua, nhan luc
va thanh » ban thanh, va tinh, le thanh
hieu van » hieu va, thien van, lieu va
hai cua » thai cua, dai cua, hoi cua
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang

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) or (v nang)) xa hoi. hieu van chat luc ((va thanh) OR (gia thanh)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky nang) OR (v nang)) xa hoi. hieu van chat luc ((va thanh) OR (gia thanh)) hai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky nang) or (v nang)) xa hoi. hieu van chat luc ((va thanh) OR (gia thanh)) hai cua tre*".