Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
thi van » thi lan, thi hanh, thi nang
tai cuu » tai cuc, tai buu, tai cua
van cau » van dau, van hau, van chat
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
cuu tre » cua tre, cau tren, cau treo
luc va » duc va, tuc va, loc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (ty hang)) xa hoi. thi van cau ((luc va) OR (thuc hanh)) hanh tai cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty hang)) xa hoi. thi van cau ((luc va) or (thuc hanh)) hanh tai cuu tre~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ty hang)) xa hoi. thi van cau ((luc va) or (thuc hanh)) hanh tai cuu tre*.