Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
van lam » van nam
lam xuc » cam xuc, lam duoc
xuc van » duc van, luc van, vuc van
doi cua » dai cua, hoi cua
y nang » ky nang, ly nang, v nang
di cua » dai cua, de cua, do cua
x hoi » xa hoi, x ho, 5 hoi
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: te sach y nang ((x hoi) OR (o hoi)). hieu van lam xuc van hanh ((di cua) or (doi cua)) vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((x hoi) OR (o hoi)). hieu van lam xuc van hanh ((di cua) OR (doi cua)) vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((x hoi) OR (o hoi)). hieu van lam xuc van hanh ((di cua) or (doi cua)) vat*".