Perhaps you should try some spelling variations:
ban hanh » ban hang
thu sach » tu sach, thuat sach, thuoc sach
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
sach tu » sach thu, cach tu, sach ty
va hanh » van hanh, va thanh, va danh
tu nano » truc nano
vai cua » dai cua, hai cua, bai cua
lai cua » dai cua, hai cua, lai chau
nano x » nano 1, nano o
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 tu nano x hoi. hieu va cac xuc ((va hanh) or (ban hanh)) ((vai cua) OR (lai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nano x hoi. hieu va cac xuc ((va hanh) OR (ban hanh)) ((vai cua) OR (lai cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tu nano x hoi. hieu va cac xuc ((va hanh) or (ban hanh)) ((vai cua) OR (lai cua)) triet*".