Perhaps you should try some spelling variations:
dinh dien » tinh dien, kinh dien, dich dien
danh dien » danh kien, danh lien, nganh dien
tham soc » cham soc, tham nuoc, thai son
toc sach » hoc sach, doc sach, thuoc sach
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
soc va » hoc va, loc va, doc va
v nang » va nang, vu nang, van nang
cuc te » cua te, cuc thue, cuc tieu

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 sach) OR (toc sach)) v nang xa hoi. hieu va tham soc va ((danh dien) OR (dinh dien)) cuc te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) v nang xa hoi. hieu va tham soc va ((danh dien) OR (dinh dien)) cuc te~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) v nang xa hoi. hieu va tham soc va ((danh dien) OR (dinh dien)) cuc te*.