Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
thanh xa » thanh ha, thanh va, thanh ba
danh vai » danh sai, danh va, doanh van
va danh » va dinh, va dan, va hanh
su sach » vu sach
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
so sach » so sanh, bo sach, co sach
ve am » va am

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sach)) thi thanh xa hoi. hieu ve am thuc va danh vai ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) thi thanh xa hoi. hieu ve am thuc va danh vai ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) thi thanh xa hoi. hieu ve am thuc va danh vai ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) thi thanh xa hoi. hieu ve am thuc va danh vai ((cua triet) OR (va triet))*.