Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua triet » cua viet, va triet
hieu van » hieu va, thien van, hieu ve
ban danh » ban doanh, ban hanh, ban dan
su triet » su viet, su tien, ve triet
sach ty » sach y, sach tu, sach thu
xuc ban » duc ban, cuc ban, quoc ban
danh vi » hanh vi, dinh vi, danh di
ty nang » ky nang, ty xang, ty hang
lam xuc » cam xuc, lam duoc
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 nang x hoi. ((hieu van) or (lieu va)) lam xuc ban danh vi ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ty nang x hoi. ((hieu van) OR (lieu va)) lam xuc ban danh vi ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ty nang x hoi. ((hieu van) or (lieu va)) lam xuc ban danh vi ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ty nang x hoi. ((hieu van) or (lieu va)) lam xuc ban danh vi ((cua triet) OR (su triet))*.