Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh dai » danh dau, danh di, danh sai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
mai hoi » mai khoi, dai hoi, lai hoi
hieu he » hieu ve, hiem he, hieu le
xa danh » va danh, dia danh, nam danh
he nam » ha nam, nghe nam
thu xa » thu xac, thu ha, thu xe

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 ky nang ((xa hoi) or (mai hoi)). hieu he nam thu xa danh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((xa hoi) OR (mai hoi)). hieu he nam thu xa danh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((xa hoi) or (mai hoi)). hieu he nam thu xa danh dai cua triet*.