Perhaps you should try some spelling variations:
hieu va » lieu va, hieu qua
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu van
sach ly » sach lo, sach ty, sach hay
vi cua » vai cua, di cua
soc va » hoc va, loc va, doc va
cua te » cua tu
ma hoi » mai hoi, xa hoi, ma hoa

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 ((sach ly) OR (sach y)) sang ma hoi. ((hieu ve) OR (hieu va)) cham soc va danh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ly) or (sach y)) sang ma hoi. ((hieu ve) OR (hieu va)) cham soc va danh vi cua te~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ly) or (sach y)) sang ma hoi. ((hieu ve) OR (hieu va)) cham soc va danh vi cua te*.