Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh ve » hanh ve, thanh va, thanh vien
thanh de » hanh de, thanh do, thanh le
thu van » thuc van, thuy van, tu van
su sach » vu sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
y nang » ky nang, ly nang, v nang
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) OR (so sach)) y nang xa hoi. hieu ve nam thu van ((thanh de) or (thanh ve)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) y nang xa hoi. hieu ve nam thu van ((thanh de) OR (thanh ve)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) y nang xa hoi. hieu ve nam thu van ((thanh de) or (thanh ve)) cua triet*".