Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
thuc day » thuc dan, thuc vat
danh va » doanh va, hanh va, anh va
su sach » so sach, vu sach
thuc va » thuc vat, thuc dan
hieu va » lieu va, hieu qua
nang co » nang cao, nang doc, nang noi
y nang » ky nang, ly nang, v nang
co hoi » co hoc, co loi
va am » va lam, va cam

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 y nang co hoi. hieu va am ((thuc va) or (thuc day)) danh va ((cua triet) OR (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang co hoi. hieu va am ((thuc va) OR (thuc day)) danh va ((cua triet) OR (cua viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang co hoi. hieu va am ((thuc va) or (thuc day)) danh va ((cua triet) OR (cua viet))*".