Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
van dau » van dao, phan dau
luc van » luoc van, luu van, duc van
chu tre » cho tre, chu tri, cau tren
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
van ha » van hoa, van chat, van phan
x hoi » xa hoi, o hoi, x ho
kem » kiem

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. hieu ((van dau) or (van ha)) luc van hanh kem ((chu tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. hieu ((van dau) OR (van ha)) luc van hanh kem ((chu tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu ((van dau) or (van ha)) luc van hanh kem ((chu tre) or (cuu tre))*.