Perhaps you should try some spelling variations:
van dinh » van minh, van dich, va dinh
cau tren » cu tren, dau tren, ca tren
nang xa » nang x, lang xa, nang ma
hieu vu » hieu ve, hieu su, dieu vu
hieu va » lieu va, hieu qua
soc van » hoc van, oc van, sac van
dinh ve » dinh ket, dinh van
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve cau » ke cau, va cau, ve cac

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: tu sac ky nang xa hoi. ((hieu vu) OR (hieu va)) cham soc van dinh ve cau tren~.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. ((hieu vu) or (hieu va)) cham soc van dinh ve cau tren*.