Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh bat » doanh bat, anh bai, dinh ba
danh sai » dung sai, danh dau, hanh san
mai khoi » mai khoa, tai khoa, cac khoi
su sach » so sach, vu sach
mai hoi » dai hoi, lai hoi, mai doi
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve nam » he nam, va nam, le nam

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