Perhaps you should try some spelling variations:
doanh vien » doanh tien, doanh chien, thanh vien
thu sach » tu sach, thuat sach, thuoc sach
luc toan » duc toan, quoc toan, luc tai
ty nang » ky nang, ty xang, ty hang
lam luc » lao luc, lam duoc
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
nang o » nang co, nang ho, nang ro
va lam » van lam, va lap
cua tu » cua tuc, cua su, cua cu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (su sach)) ty nang o hoi. lieu va lam luc toan doanh vien ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) ty nang o hoi. lieu va lam luc toan doanh vien ((cua tre) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (su sach)) ty nang o hoi. lieu va lam luc toan doanh vien ((cua tre) or (cua tu))*.