Perhaps you should try some spelling variations:
van dinh » van minh, van dich, va dinh
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, xuc ban
y nang » ky nang, ly nang, v nang
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc van dinh ((vi cua) or (di cua)) viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc van dinh ((vi cua) OR (di cua)) viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc van dinh ((vi cua) or (di cua)) viet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. ((hieu ve) OR (hieu va)) cam xuc van dinh ((vi cua) or (di cua)) viet*.