Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
duoc gia » duoc giao, quoc gia, luoc gia
thanh di » thanh de, thanh do, thanh dinh
duc gia » quoc gia
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va lam » van lam, va lap
co hoi » co hoc, co loi
cua te » cua tu

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: te sac ky nang co hoi. hieu va lam ((duoc gia) OR (duc gia)) ((thanh di) OR (thanh doi)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang co hoi. hieu va lam ((duoc gia) or (duc gia)) ((thanh di) OR (thanh doi)) cua te~".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang co hoi. hieu va lam ((duoc gia) or (duc gia)) ((thanh di) OR (thanh doi)) cua te*.