Perhaps you should try some spelling variations:
dinh chi » dinh thi, dinh tri, dinh moi
tham soc » cham soc, tham nuoc, thai son
va hanh » van hanh, va thanh, va danh
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
soc va » hoc va, loc va, doc va
te san » te ban, ke san, tu san
vi cuu » vi luu, vinh cuu
te sac » te sach, te cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) OR (te san)) ky tang xa hoi. hieu va tham soc va hanh ((vi cuu) or (dinh chi)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky tang xa hoi. hieu va tham soc va hanh ((vi cuu) OR (dinh chi)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) OR (te san)) ky tang xa hoi. hieu va tham soc va hanh ((vi cuu) or (dinh chi)) tre".
• Adding a wildcard symbol may retrieve word variants: ((te sac) OR (te san)) ky tang xa hoi. hieu va tham soc va hanh ((vi cuu) or (dinh chi)) tre*.