Perhaps you should try some spelling variations:
te sach » toc sach
hieu va » lieu va, hieu qua
cao duc » dao duc, cao suc, giao duc
va hanh » van hanh, va thanh, va danh
hai cua » thai cua, hoi cua, lai cua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi
va cao » va cac, va co, va dao

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 ((ma hoi) or (ma hoa)). hieu va cao duc va hanh ((hai cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (ma hoa)). hieu va cao duc va hanh ((hai cua) OR (dai cua)) te.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) or (ma hoa)). hieu va cao duc va hanh ((hai cua) or (dai cua)) te*.