Perhaps you should try some spelling variations:
ban tinh » ban thanh, quan tinh, ban hanh
cham cuc » cham cuu, pham cuc, pham chuc
tu sach » thu sach, su sach, te sach
cuc ban » cua ban, cac ban, cuu ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
dong ha » dong hoa, dong va, dong hoc
dang xa » dang xay, lang xa, dang ha
da cua » day cua, dan cua, dam cua

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 ky ((dang xa) or (dong ha)) hoi. hieu ve cham cuc ban tinh ((da cua) OR (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((dang xa) OR (dong ha)) hoi. hieu ve cham cuc ban tinh ((da cua) OR (dai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((dang xa) or (dong ha)) hoi. hieu ve cham cuc ban tinh ((da cua) OR (dai cua)) tre*".