Perhaps you should try some spelling variations:
thanh do » thanh pho, thanh hoa, thanh loi
thanh de » hanh de, thanh ve, thanh le
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
hieu le » hieu ve, hieu he, hieu ly
thuc va » thuc vat, thuc dan, thuc day
tu cao » cu cao, tu cac, su cao
ma hoi » mai hoi, xa hoi, ma hoa
vu cao » cu cao, va cao
le am » le ham, le nam, le a

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) OR (vu cao)) ky nang ma hoi. hieu le am thuc va ((thanh de) OR (thanh do)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cao) or (vu cao)) ky nang ma hoi. hieu le am thuc va ((thanh de) OR (thanh do)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((tu cao) or (vu cao)) ky nang ma hoi. hieu le am thuc va ((thanh de) OR (thanh do)) cua tre*.