Perhaps you should try some spelling variations:
nhan luc » nang luc
te sach » toc sach
ty nang » ty xang, ty hang, ly nang
va nhan » van nhan, ca nhan, va phan
va dinh » van dinh, va kinh, va tinh
dinh di » dinh du, dinh vi, danh di
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
luc va » duc va, tuc va, loc va

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 ((ty nang) OR (ky nang)) xa hoi. lieu va nhan luc va dinh di ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) or (ky nang)) xa hoi. lieu va nhan luc va dinh di ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (ky nang)) xa hoi. lieu va nhan luc va dinh di ((cua tre) OR (cuu tre))*.