Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
cam thuc » am thuc, nam thuc, cam thu
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
hieu ve » hieu van
ma hoi » mai hoi, xa hoi, ma hoa
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky tang ma hoi. ((hieu ve) OR (hieu va)) cam thuc va thanh ((vi cua) OR (di cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky tang ma hoi. ((hieu ve) OR (hieu va)) cam thuc va thanh ((vi cua) or (di cua)) tre~".
• Adding a wildcard symbol may retrieve word variants: tu cac ky tang ma hoi. ((hieu ve) OR (hieu va)) cam thuc va thanh ((vi cua) or (di cua)) tre*.