Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
toc sach » hoc sach, doc sach, thuoc sach
thi nang » thi cong, ki nang, thi hanh
va thanh » gia thanh, ban thanh, va tinh
cua viet » ca viet, hoa viet, cua vat
sach ky » sac ky, sach y, sach ty
lap cua » lai cua, tap cua, lam cua
thi van » thi lan, thi hanh
xuc va » duc va, tuc va, luc va
o hoc » co hoc, mo hoc, so hoc
o hoi » co hoi, o hai, o hoa

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: toc sach ky nang ((o hoi) OR (o hoc)). ((thi van) OR (thi nang)) bac xuc va thanh lap cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang ((o hoi) OR (o hoc)). ((thi van) or (thi nang)) bac xuc va thanh lap cua viet~".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang ((o hoi) OR (o hoc)). ((thi van) or (thi nang)) bac xuc va thanh lap cua viet*.