Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
cuu tre » cua tre, cau tren
te sach » toc sach
va dao » ca dao
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho
va co » vo co

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 hoi. lieu ((va co) or (va dao)) thuc va hanh va ((cuu tre) OR (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. lieu ((va co) OR (va dao)) thuc va hanh va ((cuu tre) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. lieu ((va co) or (va dao)) thuc va hanh va ((cuu tre) OR (cau treo))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. lieu ((va co) or (va dao)) thuc va hanh va ((cuu tre) OR (cau treo))*.