Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
dao tuc » dao duc
tuc van » thuc van, truc van, tuc va
van anh » van thanh, tuan anh, van minh
cuu tre » cua tre, cau tren
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: su ((sach ty) or (sach y)) nang xa hoi. lieu va dao tuc van anh d ((cuu tre) OR (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) nang xa hoi. lieu va dao tuc van anh d ((cuu tre) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) or (sach y)) nang xa hoi. lieu va dao tuc van anh d ((cuu tre) OR (cau treo))".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sach y)) nang xa hoi. lieu va dao tuc van anh d ((cuu tre) OR (cau treo))*.