Perhaps you should try some spelling variations:
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cach » va cac
cach tu » cach thuc
va danh » va dinh, va hanh, dia danh
hai cua » thai cua, hoi cua, lai cua
y nang » ky nang, ly nang, v nang
va dan » ca dan, va dao, va dau

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 y nang xa hoi. hieu va cach tu ((va danh) or (va dan)) ((hai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu va cach tu ((va danh) OR (va dan)) ((hai cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu va cach tu ((va danh) or (va dan)) ((hai cua) or (dai cua)) tre*.