Perhaps you should try some spelling variations:
van dinh » van minh, van dich, xuan dinh
su sach » so sach, vu sach
ty nang » ty xang, ty hang, ly nang
hieu ve » hieu va, hieu van
va dinh » va kinh, va tinh, vu dinh
ve cam » ve cham, ve cac, va cam
du cua » duy cua, dau cua, dum cua
cua tu » cua tuc, cua su, cua cu

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: su sach ((ty nang) OR (ky nang)) xa hoi. hieu ve cam xuc ((va dinh) OR (van dinh)) du cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam xuc ((va dinh) OR (van dinh)) du cua tu~".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam xuc ((va dinh) OR (van dinh)) du cua tu*.