Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach
vu sach » vu bach, vu khach
cau luc » cau truc, cau phuc
luc van » luoc van, luu van, duc van
luu tre » luu tru, cuu tre, luy tre
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
va cau » van cau, va cac, va dau
vi luu » vi lua
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: ((su sach) OR (vu sach)) y nang o hoi. lieu va cau luc van thanh vi luu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) y nang o hoi. lieu va cau luc van thanh vi luu tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) y nang o hoi. lieu va cau luc van thanh vi luu tre*.