Perhaps you should try some spelling variations:
dao thuc » dan thuc, dao tuc, do thuc
vat hanh » vat thanh, van hanh, va hanh
te sach » toc sach
vai cua » dai cua, lai cua, mai cua
bai cua » ban cua, dai cua, bai ca
hai cua » thai cua, dai cua, hoi cua
y nang » ky nang, ly nang, v nang
va dao » ca 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 x ho. lieu va dao thuc vat hanh ((((vai cua) OR (bai cua))) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x ho. lieu va dao thuc vat hanh ((((vai cua) OR (bai cua))) OR (hai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x ho. lieu va dao thuc vat hanh ((((vai cua) OR (bai cua))) or (hai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x ho. lieu va dao thuc vat hanh ((((vai cua) OR (bai cua))) or (hai cua)) tre*.