Perhaps you should try some spelling variations:
thanh di » thanh doi, thanh de, thanh do
cua viet » hoa viet, cua vat, cua dieu
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
qua cac » cua cac
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
ca viet » va viet, co viet, hoa viet
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky

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 dang xa hoi. hieu qua cac ((xuc van) or (duc van)) thanh di ((cua viet) or (ca viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky dang xa hoi. hieu qua cac ((xuc van) OR (duc van)) thanh di ((cua viet) OR (ca viet)).
• Adding a wildcard symbol may retrieve word variants: tu san ky dang xa hoi. hieu qua cac ((xuc van) or (duc van)) thanh di ((cua viet) or (ca viet))*.