Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac duc » cac du, cac dac, cac nuoc
cao duc » dao duc, cao suc, giao duc
cua tre » cua te, cuu tre, dua tren

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 sach ky nang xa hoi. thien van ((cac duc) OR (cao duc)) va thanh san ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. thien van ((cac duc) OR (cao duc)) va thanh san ((cua tre) or (cua triet))~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. thien van ((cac duc) OR (cao duc)) va thanh san ((cua tre) or (cua triet))*.