Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
nang lap » nang cap, sang lap, nang lam
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
lap hai » lap tai, lap lai, lap hoat
luc va » duc va, tuc va, loc va
dan va » doan va, ban va, han va
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) or (sach y)) nang lap hai. hieu ve cham luc va ((dan va) or (dan ca)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) nang lap hai. hieu ve cham luc va ((dan va) OR (dan ca)) cua te.
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach y)) nang lap hai. hieu ve cham luc va ((dan va) or (dan ca)) cua te*.