Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, dua tren
va hanh » van hanh, va thanh, va danh
thuc va » thuc vat, thuc dan, thuc day
te sach » toc sach
dung ha » dung va, dung he, dung khoa
ky dung » ly dung, ky dang, ky vung
ve nam » va nam, le nam, te nam
he nam » ha nam, nghe nam
ha hoi » hoa hoi, ha noi, xa hoi

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 dung ha hoi. hieu ((ve nam) OR (he nam)) thuc va hanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dung ha hoi. hieu ((ve nam) OR (he nam)) thuc va hanh vi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dung ha hoi. hieu ((ve nam) OR (he nam)) thuc va hanh vi ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ky dung ha hoi. hieu ((ve nam) OR (he nam)) thuc va hanh vi ((cua tre) or (cua triet))*.