Perhaps you should try some spelling variations:
van tham » van thanh, van tuan, van chat
dinh cuu » dinh chi
tham soc » cham soc, tham nuoc, thai son
hieu van » hieu va, thien van, lieu va
va danh » va dinh, va dan, va hanh
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
soc va » hoc va, loc va, doc va
tu san » thu san, tu ban, tu can
vi cuu » vi luu, vinh cuu
te san » te ban, ke san, ta san

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: ((te san) OR (tu san)) ky tang xa hoi. hieu van tham soc va danh ((vi cuu) OR (dinh cuu)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te san) OR (tu san)) ky tang xa hoi. hieu van tham soc va danh ((vi cuu) or (dinh cuu)) tre~".
• Adding a wildcard symbol may retrieve word variants: ((te san) OR (tu san)) ky tang xa hoi. hieu van tham soc va danh ((vi cuu) or (dinh cuu)) tre*.