Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cua viet » ca viet, hoa viet, cua vat
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
pham tu » phan tu, pham thi, pham tai
va hanh » va thanh, va danh, ban hanh
tu van » tu va
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu van ky nang x hoi. hieu ve pham tu ((va hanh) OR (van hanh)) vi cua viet~".
• Adding a wildcard symbol may retrieve word variants: tu van ky nang x hoi. hieu ve pham tu ((va hanh) OR (van hanh)) vi cua viet*.