Perhaps you should try some spelling variations:
tinh hoi » trinh hoi, tinh hoc, tinh hai
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
xuc may » xuc hay, truc may, phuc may
hoi cua » hoi chuc
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cao, va cai

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) or (su sach)) ky nang xa hoi. hieu ((va cam) OR (va cac)) xuc may tinh hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang xa hoi. hieu ((va cam) OR (va cac)) xuc may tinh hoi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang xa hoi. hieu ((va cam) OR (va cac)) xuc may tinh hoi cua tre*".