Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
bach duoc » bach tuoc, sach duoc, ban duoc
dia danh » dia ban, gia dinh
te sach » toc sach
va danh » va dinh, va dan, va thanh
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, ban hanh
nang xa » nang x, lang xa, nang ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. hieu vien bach duoc ((va hanh) or (((va danh) OR (dia danh)))) tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu vien bach duoc ((va hanh) OR (((va danh) OR (dia danh)))) tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu vien bach duoc ((va hanh) or (((va danh) OR (dia danh)))) tai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu vien bach duoc ((va hanh) or (((va danh) OR (dia danh)))) tai cua tre*.