Perhaps you should try some spelling variations:
ban hanh » ban hang
cam cuc » cam xuc, cham cuu, pham cuc
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
cuc ban » cua ban, cac ban, cuu ban
sach ky » sac ky, sach y, sach kem
hieu ve » hieu va, hieu van
dang ha » dong ha, dung ha, lang ha
sach ty » sach y, sach tu, sach thu
ve cam » ve cham, ve cac, va cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach ty)) dang ha noi. hieu ve cam cuc ban hanh ((vai cua) OR (hai cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) or (sach ty)) dang ha noi. hieu ve cam cuc ban hanh ((vai cua) OR (hai cua)) triet~".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach ty)) dang ha noi. hieu ve cam cuc ban hanh ((vai cua) OR (hai cua)) triet*.