Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh ha » thanh hoa, thanh hai, nhanh ha
vu sach » su sach, vu khach
nang xa » nang x, lang xa, nang ma
va chat » van chat, cao chat, hoa chat
luc van » luoc van, luu van, duc van
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
ha cua » hoa cua, hai cua, nha cua

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) OR (vu bach)) y nang xa hoi. lieu ((va chat) or (va phat)) luc van thanh ha cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu bach)) y nang xa hoi. lieu ((va chat) OR (va phat)) luc van thanh ha cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu bach)) y nang xa hoi. lieu ((va chat) or (va phat)) luc van thanh ha cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu bach)) y nang xa hoi. lieu ((va chat) or (va phat)) luc van thanh ha cua tre*.