Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
dam thuc » am thuc, dan thuc, nam thuc
dia danh » dia ban, gia dinh
va triet » va thiet, va trien, ve triet
sach ky » sac ky, sach y, sach ty
van dam » van nam, van dao, van dau
va hanh » van hanh, va thanh, va danh
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: thu sach ky nang x hoi. hieu van dam thuc ((dia danh) or (va hanh)) mai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x hoi. hieu van dam thuc ((dia danh) OR (va hanh)) mai va triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x hoi. hieu van dam thuc ((dia danh) or (va hanh)) mai va triet*.