Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
hieu va » lieu va, hieu qua
va hang » van hang, va nang, va lang
tai cua » thai cua, tai cuc, dai cua
tu sac » tu sach, tu cac, tu san
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky lang) OR (ky tang)) xa hoi. hieu va cam xuc va hang ((tai cua) OR (tri cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky lang) OR (ky tang)) xa hoi. hieu va cam xuc va hang ((tai cua) or (tri cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky lang) OR (ky tang)) xa hoi. hieu va cam xuc va hang ((tai cua) or (tri cua)) tre*.