Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cua viet » hoa viet, cua vat, cua dieu
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, xuc ban
ca viet » va viet, co viet, hoa viet
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
va cam » va cham, va cac, va cao

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

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