Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham soc » cham soc, tham nuoc, thai son
su sach » so sach, vu sach
va dinh » van dinh, va kinh, va tinh
dinh du » dinh duc, dinh cu, dinh tu
ma hoi » mai hoi, ma hoa, me hoi
du cua » duy cua, dau cua, dum cua
nuoc » quoc, duoc, ngoc

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 _ sang ((ma hoi) or (xa hoi)). lieu va ((tham soc) or (nha nuoc)) va dinh du cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach _ sang ((ma hoi) OR (xa hoi)). lieu va ((tham soc) OR (nha nuoc)) va dinh du cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach _ sang ((ma hoi) or (xa hoi)). lieu va ((tham soc) or (nha nuoc)) va dinh du cua triet*.