Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
lang van » dang van, tang van, hoang van
dinh vi » dinh ve, dinh viet, dinh tri
danh vi » hanh vi, danh di, danh va
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
van hoi » van hoa, van hoc, van hoe
cua tre » cua te, cuu tre, cua triet
sach o » sach lo, sach y, mach o
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 o) OR (sac o)) lang van hoi. hieu vu cham luc va ((danh vi) OR (dinh vi)) cua tre~.
• Adding a wildcard symbol may retrieve word variants: te ((sach o) or (sac o)) lang van hoi. hieu vu cham luc va ((danh vi) or (dinh vi)) cua tre*.