Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban danh » ban doanh, ban hanh, ban dan
hieu ve » hieu va, hieu van
sach ty » sach tu, sach thu, xach tay
lam duc » lam duoc, pham duc, nam duoc
duc ban » duc tan, duc van, dua ban
danh vi » hanh vi, dinh vi, danh di
xang x » nang x
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc ((sach ty) OR (sach y)) xang x hoi. ((hieu ve) or (lieu va)) lam duc ban danh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc ((sach ty) OR (sach y)) xang x hoi. ((hieu ve) OR (lieu va)) lam duc ban danh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach ty) OR (sach y)) xang x hoi. ((hieu ve) or (lieu va)) lam duc ban danh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach ty) OR (sach y)) xang x hoi. ((hieu ve) or (lieu va)) lam duc ban danh vi cua triet*.