Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang hoa » dang hoai, dang khoa, dong hoa
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
hoa hoi » khoa hoi, hoa hoc, hoa doi
vai cua » dai cua, hai cua, lai cua
le nam » ly nam, he nam, te nam
le na » le va, le ta, le ha

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 dang hoa hoi. hieu ((le nam) OR (le na)) thuc van hanh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang hoa hoi. hieu ((le nam) OR (le na)) thuc van hanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang hoa hoi. hieu ((le nam) OR (le na)) thuc van hanh vai cua triet*.