Perhaps you should try some spelling variations:
hang dau » hang va, hang tai
hieu van » thien van, lieu va, hieu ve
danh dau » lanh dao, danh tu, xang dau
te sach » toc sach
cao duc » dao duc, cao suc, giao duc
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
sang xa » song xa, lang xa, sang ma
ky sang » ky nang, ky dang, ky tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky sang xa hoi. ((hieu van) OR (hieu va)) cao duc va ((danh dau) or (hang dau)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky sang xa hoi. ((hieu van) OR (hieu va)) cao duc va ((danh dau) OR (hang dau)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang xa hoi. ((hieu van) OR (hieu va)) cao duc va ((danh dau) or (hang dau)) cua tre*".