Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hai cua » thai cua, dai cua, hoi cua
va dinh » van dinh, va kinh, va tinh
va danh » va dan, va hanh, dia danh
cac luc » cau luc, coc luc, cac nuoc
hieu va » lieu va
nang xa » nang x, lang xa, nang ma
cua tu » cua tuc, cua su, cua cu

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: te sach ky nang xa hoi. ((hieu va) OR (hieu qua)) cac luc ((va danh) OR (va dinh)) hai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. ((hieu va) or (hieu qua)) cac luc ((va danh) OR (va dinh)) hai cua tu~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. ((hieu va) or (hieu qua)) cac luc ((va danh) OR (va dinh)) hai cua tu*.