Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
tu sach » thu sach, su sach, te sach
cac luc » cau luc, coc luc, cac nuoc
luc van » luoc van, luu van, duc van
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
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: ((tu sach) or (thuat sach)) y nang o hoi. hieu viec cac luc van hanh dai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) y nang o hoi. hieu viec cac luc van hanh dai cua tu.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) y nang o hoi. hieu viec cac luc van hanh dai cua tu*.