Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc day » thuc vat
thuc dan » thuc hanh, hoc dan, thuc vat
danh dai » danh dau, danh di, danh sai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
thuc va » thuc vat
x hoi » xa hoi, o hoi, x ho
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 ky nang x hoi. hieu ve am ((thuc va) or (((thuc day) OR (thuc dan)))) danh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu ve am ((thuc va) OR (((thuc day) OR (thuc dan)))) danh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu ve am ((thuc va) or (((thuc day) OR (thuc dan)))) danh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu ve am ((thuc va) or (((thuc day) OR (thuc dan)))) danh dai cua triet*.