Perhaps you should try some spelling variations:
nang cho » nang chon, ngang cho, nang cao
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
cac cau » cac mau, bac cau, ca cau
can cau » van cau, ban cau, ca cau
va dan » ca dan, va dao, va dau
ve am » va am

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 ky nang cho hoc. hieu ve am thuc va dan ((cac cau) or (can cau)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang cho hoc. hieu ve am thuc va dan ((cac cau) OR (can cau)) tren.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang cho hoc. hieu ve am thuc va dan ((cac cau) or (can cau)) tren*.