Perhaps you should try some spelling variations:
thu nang » thu hang, thu bang, tho nang
thi nang » thi cong, ki nang, thi hanh
nhan luc » nang luc
cua nhan » ca nhan, cua ngan, cua nha
hieu cua » hieu qua, dieu cua, bieu cua
te sach » toc sach
tai cua » thai cua, tai cuc, tri cua
han tai » hang tai, nhan tai, van tai
luc va » duc va, tuc va, loc va
va han » va phan, van han, va hanh
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu nang) OR (thi nang)) ((o hoi) OR (x ho)). hieu cua nhan luc va han tai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thu nang) OR (thi nang)) ((o hoi) or (x ho)). hieu cua nhan luc va han tai cua tu~".
• Adding a wildcard symbol may retrieve word variants: te sach ((thu nang) OR (thi nang)) ((o hoi) or (x ho)). hieu cua nhan luc va han tai cua tu*.