Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
hanh dai » hanh tai, hanh dao, vanh dai
su triet » su viet, su tien, ve triet
te sach » toc sach
nang mo » nang meo, nang ma, nang co
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan
y nang » ky nang, ly nang, v nang
mo hoc » mon hoc, co hoc
dai su » dai sua, dai so, dan su
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 y nang mo hoc. hieu ve am ((thuc va) or (thuc day)) hanh dai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang mo hoc. hieu ve am ((thuc va) OR (thuc day)) hanh dai su triet.
• Adding a wildcard symbol may retrieve word variants: te sach y nang mo hoc. hieu ve am ((thuc va) or (thuc day)) hanh dai su triet*.