Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van chat » cao chat
tinh hai » tinh thai, tinh chat, trinh han
chat xuc » chat huu, cam xuc, chao xu
tinh dai » trinh dai, tinh da, tinh doi
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
xuc va » duc va, tuc va, luc va

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

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