Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
thi nang » thi cong, ki nang, thi hanh
va thanh » gia thanh, ban thanh, va tinh
cua viet » hoa viet, cua vat, cua dieu
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac xuc » cac nuoc, chat xuc, cac cuoc
ca viet » va viet, co viet, hoa viet

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