Perhaps you should try some spelling variations:
thanh hoa » thanh pho
nam thuoc » nam thu, nha thuoc, cay thuoc
cua triet » cua viet, su triet, va triet
ky thanh » ky hanh, ty thanh, y thanh
nam thuc » am thuc, nam thu, nam tu
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu he » hieu ve, hiem he, hieu le

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