Perhaps you should try some spelling variations:
thanh de » hanh de, thanh ve, thanh do
cua viet » ca viet, hoa viet, cua vat
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
tu cao » cu cao, tu cac, vu cao
ma hoi » mai hoi, xa hoi, me hoi
tuc va » thuc va, tuc xa, duc va
de cua » le cua, te cua, dieu 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 cao ky nang ((ma hoi) OR (ma hoa)). hieu va cac ((tuc va) OR (truc va)) thanh de cua viet~.
• Adding a wildcard symbol may retrieve word variants: tu cao ky nang ((ma hoi) or (ma hoa)). hieu va cac ((tuc va) or (truc va)) thanh de cua viet*.