Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
sach tu » sach thu, cach tu, sach ty
nang di » nang du, hang di, nang ji
va nang » van nang, da nang, cam nang
va cham » va chat, va tham
hieu va » lieu va, hieu qua
te sach » toc sach
tang ma » mang may, tang van
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu ((nang xa) or (tang ma)) hoi. hieu va cham luc va nang di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((nang xa) OR (tang ma)) hoi. hieu va cham luc va nang di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach tu ((nang xa) or (tang ma)) hoi. hieu va cham luc va nang di cua tre*.