Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc day » thuc dan, thuc vat
danh va » doanh va, hanh va, anh va
thuc va » thuc vat, thuc dan
sach ty » sach y, sach thu, xach tay
nang co » nang cao, nang doc, nang noi
sach tu » sach thu, cach tu, sach uu
hieu va » lieu va, hieu qua
co hoi » co hoc, co loi
va cua » va chua, via cua, ca cua
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: tu ((sach ty) OR (sach tu)) nang co hoi. hieu va am ((thuc va) or (thuc day)) danh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach tu)) nang co hoi. hieu va am ((thuc va) OR (thuc day)) danh va cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach tu)) nang co hoi. hieu va am ((thuc va) or (thuc day)) danh va cua triet*".