Perhaps you should try some spelling variations:
dung thoi » dung thi, dung toi, dung thuoc
nhan luc » nang luc
dung hoi » duong hoi, dung hoai, dung hoc
luc van » luoc van, luu van, duc van
te sach » toc sach
ve nhan » ve nha, de nhan, va nhan
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (v nang)) xa hoi. hieu ve nhan luc van ((dung hoi) OR (dung thoi)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (v nang)) xa hoi. hieu ve nhan luc van ((dung hoi) OR (dung thoi)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (v nang)) xa hoi. hieu ve nhan luc van ((dung hoi) OR (dung thoi)) cua tre*.