Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
van dau » van dao, phan dau
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
y nang » ky nang, ly nang, v nang
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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 nam) or (van dau)) xuc van hanh di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. hieu ((van nam) OR (van dau)) xuc van hanh di cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu ((van nam) or (van dau)) xuc van hanh di cua viet*.