Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
lam thuoc » nam thuoc, cay thuoc, nam thuc
hieu van » hieu va, thien van, lieu va
chat cua » nhat cua, chat va, chat huu
te sach » toc sach
xay hoi » xa hoi, tay hoi, cay phoi
va tinh » may tinh

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 _ van xay hoi. hieu van ((lam thuoc) OR (am thuc)) va tinh chat cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach _ van xay hoi. hieu van ((lam thuoc) OR (am thuc)) va tinh chat cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach _ van xay hoi. hieu van ((lam thuoc) OR (am thuc)) va tinh chat cua triet*.