Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
lam duoc » luat duoc, lam thuoc, tao duoc
nam duoc » nam thuoc, da duoc, dat duoc
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
thi van » thi lan, thi hanh, thi nang
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
su sac » su sach, su cac, su xac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. ((thien van) OR (thi van)) ((lam duoc) or (nam duoc)) ban thanh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. ((thien van) OR (thi van)) ((lam duoc) OR (nam duoc)) ban thanh van cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. ((thien van) OR (thi van)) ((lam duoc) or (nam duoc)) ban thanh van cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. ((thien van) OR (thi van)) ((lam duoc) or (nam duoc)) ban thanh van cua tre*.