Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban mach » ban sach, ranh mach, ban hanh
su sach » so sach
vu sach » vu bach, vu khach
ky dinh » ky sinh, ky danh, ky kinh
dinh xa » dinh ba, dinh va, dinh xu
hieu ve » hieu va, hieu van
cac van » cac dan
ve cac » va cac, vien cac
vi cua » vai cua, di cua

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 (vu sach)) ky dinh xa hoi. hieu ve cac van ban mach vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky dinh xa hoi. hieu ve cac van ban mach vi cua triet*.