Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
su sach » so sach, vu sach
tai cuu » tai cuc, tai buu, tai cua
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
so sanh » do sanh
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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 sanh)) ky nang ((x hoi) OR (o hoi)). hieu va cam xuc va hanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ky nang ((x hoi) OR (o hoi)). hieu va cam xuc va hanh tai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) ky nang ((x hoi) OR (o hoi)). hieu va cam xuc va hanh tai cuu tre*".