Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dinh cua » dinh cuu, sinh cua, dinh cu
chat xuc » chat huu, chao xu, chat cua
cua cua » cua chua, ca cua, qua cua
va dinh » van dinh, va kinh, va tinh
tu sach » thu sach, su sach, te sach
hieu ve » hieu va
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang x hoi. ((hieu ve) OR (hieu van)) ((chat xuc) or (cam xuc)) va dinh cua cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. ((hieu ve) OR (hieu van)) ((chat xuc) OR (cam xuc)) va dinh cua cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. ((hieu ve) OR (hieu van)) ((chat xuc) or (cam xuc)) va dinh cua cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. ((hieu ve) OR (hieu van)) ((chat xuc) or (cam xuc)) va dinh cua cua tre*.