Perhaps you should try some spelling variations:
tang van » dang van, hoang van, trong van
nhan luc » nang luc
te sach » toc sach
cuu tre » cau tren, cau treo
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
ve nhan » ve nha, de nhan, va nhan
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cua triet, dua tren
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 y ((nang xa) OR (tang van)) hoi. hieu ve nhan luc va hanh va ((cuu tre) OR (cua tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang xa) or (tang van)) hoi. hieu ve nhan luc va hanh va ((cuu tre) OR (cua tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) or (tang van)) hoi. hieu ve nhan luc va hanh va ((cuu tre) OR (cua tre))*.