Perhaps you should try some spelling variations:
ban tinh » ban thanh, quan tinh, ban hanh
cham cuu » cap cuu, chat cua
cham cuc » pham cuc, pham chuc, kham cuoc
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
tinh da » tinh va, tinh gia, tinh lao
hieu va » lieu va, hieu qua
dong ha » dong hoa, dong va, dong hoc
dang xa » dang xay, lang xa, dang ha
cua tre » cua te, cuu tre, cua triet
da cua » dai cua, day cua, dan 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 va ((cham cuc) OR (cham cuu)) ban tinh da 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 va ((cham cuc) OR (cham cuu)) ban tinh da 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 va ((cham cuc) OR (cham cuu)) ban tinh da cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((dang xa) or (dong ha)) hoi. hieu va ((cham cuc) OR (cham cuu)) ban tinh da cua tre*.