Perhaps you should try some spelling variations:
tinh voi » trinh voi, tinh doi, binh voi
hieu van » hieu va, thien van, lieu va
su sach » vu sach
voi cua » hoi cua, doi cua, moi cua
va tinh » may tinh
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
lang xa » lang ha, dang xay, lang van
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
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: ((su sach) OR (so sach)) ty ((lang xa) or (nang cao)) hoi. hieu van cau xuc va tinh voi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ty ((lang xa) OR (nang cao)) hoi. hieu van cau xuc va tinh voi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty ((lang xa) or (nang cao)) hoi. hieu van cau xuc va tinh voi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ty ((lang xa) or (nang cao)) hoi. hieu van cau xuc va tinh voi cua tre*.