Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
xuc van » duc van, luc van, xuc ban
ca viet » va viet, co viet, hoa viet
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, x ho
vi ca » vit ca, li ca, va ca

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty nang x hoi. hieu ((ve cam) or (va cam)) xuc van hanh vi ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang x hoi. hieu ((ve cam) OR (va cam)) xuc van hanh vi ca viet.
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang x hoi. hieu ((ve cam) or (va cam)) xuc van hanh vi ca viet*.