Perhaps you should try some spelling variations:
ban banh » ban hanh, ban anh, ban danh
hieu van » hieu va, thien van, lieu va
thu sach » thuat sach, thuoc sach, thu hoach
nang ma » tang ma, sang ma, nang cao
van cam » van nam, van lam, van cau
xuc ban » duc ban, cuc ban, quoc ban
vai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi cua
tu sach » su sach, te sach, tu cach
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (thu sach)) ky nang ma hoi. hieu van cam xuc ban banh ((vai cua) or (hai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang ma hoi. hieu van cam xuc ban banh ((vai cua) OR (hai cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ky nang ma hoi. hieu van cam xuc ban banh ((vai cua) or (hai cua)) triet*".