Perhaps you should try some spelling variations:
nhan luc » nang luc
danh sai » dung sai, danh bat, danh dau
tay lang » tai lang, tay tang, tay quang
tu sach » thu sach, su sach, te sach
cua tre » cua te, cua triet, dua tren
va danh » va dinh, va dan, va hanh
ve nhan » ve nha, de nhan, va nhan
hieu ve » hieu va, hieu van
ty lang » ty xang, ty hang, tu lang
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: tu sach ((ty lang) OR (tay lang)) xa hoi. hieu ve nhan luc va danh sai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty lang) OR (tay lang)) xa hoi. hieu ve nhan luc va danh sai ((cua tre) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty lang) OR (tay lang)) xa hoi. hieu ve nhan luc va danh sai ((cua tre) or (cuu tre))*.