Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhan luc » nang luc
sach doi » sach hoi, sach moi, sach dao
danh van » doanh van, dang van, dinh van
cua tre » cua te, cuu tre, dua tren
va danh » va dinh, va dan, va hanh
sach lo » sach dao, sach hoi, sach moi
hieu ve » hieu va, hieu van
ve nhan » ve nha, de nhan, va nhan
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

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 lo) OR (sach doi)) nang x hoi. hieu ve nhan luc va danh van ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach lo) OR (sach doi)) nang x hoi. hieu ve nhan luc va danh van ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach lo) OR (sach doi)) nang x hoi. hieu ve nhan luc va danh van ((cua tre) or (cua triet))*.