Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thai cua » than cua, tai cuc, tri cua
cam cuc » cam xuc, cham cuu, pham cuc
tai cua » tai cuc, tri cua, dai cua
cuc ban » cua ban, cac ban, cuu ban
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky ((nang xa) OR (lang xa)) hoi. hieu ve cam cuc ban thanh ((tai cua) or (thai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (lang xa)) hoi. hieu ve cam cuc ban thanh ((tai cua) OR (thai cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang xa) OR (lang xa)) hoi. hieu ve cam cuc ban thanh ((tai cua) or (thai cua)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) OR (lang xa)) hoi. hieu ve cam cuc ban thanh ((tai cua) or (thai cua)) triet*.