Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc ban » thuoc ban, thu ban, thuc van
hang hoi » hang hoa, hang hai, hang doi
thuc dan » thuc hanh, hoc dan, thuc vat
hieu le » hieu ve, hieu he, hieu ly
nang xa » nang x, lang xa, nang ma
co sach » bo sach, cuon sach, hoc sach
hoi cua » hoi chuc
so sach » so sanh, bo sach, hoc sach
le nam » ly nam, he nam, le na

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) OR (co sach)) ky nang xa hoi. hieu le nam ((thuc ban) or (thuc dan)) hang hoi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (co sach)) ky nang xa hoi. hieu le nam ((thuc ban) OR (thuc dan)) hang hoi cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (co sach)) ky nang xa hoi. hieu le nam ((thuc ban) or (thuc dan)) hang hoi cua triet*".