Perhaps you should try some spelling variations:
dinh kien » linh kien, dinh dien, dinh ket
te sach » toc sach
ly vang » ly hang, ly van, ly quang
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va dinh » van dinh, va kinh, va tinh
y nang » ky nang, ly nang, v nang
soc va » hoc va, loc va, doc va
cuc te » cuc thue, cuc tieu
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((y nang) or (ly vang)) xa hoi. hieu va cham soc va dinh kien ((cuc te) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ly vang)) xa hoi. hieu va cham soc va dinh kien ((cuc te) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (ly vang)) xa hoi. hieu va cham soc va dinh kien ((cuc te) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (ly vang)) xa hoi. hieu va cham soc va dinh kien ((cuc te) OR (cua te))*.