Perhaps you should try some spelling variations:
te sach » toc sach
tinh va » tich va, trinh van, trinh vat
tinh vi » trinh vi, tinh voi, dinh vi
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
su sach » so sach, vu sach
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cao
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: ((te sach) or (su sach)) ky nang x hoi. hieu va cam xuc va ((tinh vi) OR (tinh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (su sach)) ky nang x hoi. hieu va cam xuc va ((tinh vi) OR (tinh va)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (su sach)) ky nang x hoi. hieu va cam xuc va ((tinh vi) OR (tinh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (su sach)) ky nang x hoi. hieu va cam xuc va ((tinh vi) OR (tinh va)) cua tre*.