Perhaps you should try some spelling variations:
ban thinh » ban thanh, ban tinh, van thinh
thinh le » trinh ly
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cam tuc » cam tu, nam thuc, dam thuc
hieu va » lieu va, hieu qua
hang xa » hoang xa, hang va, hang ca
hieu ve » hieu van
ty hang » ly hang, ty xang, thi hang
le cua » ly 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 ty hang xa hoi. ((hieu ve) or (hieu va)) ((cam tuc) OR (cam xuc)) ban thinh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty hang xa hoi. ((hieu ve) OR (hieu va)) ((cam tuc) OR (cam xuc)) ban thinh le cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty hang xa hoi. ((hieu ve) or (hieu va)) ((cam tuc) OR (cam xuc)) ban thinh le cua vat".
• Adding a wildcard symbol may retrieve word variants: tu sach ty hang xa hoi. ((hieu ve) or (hieu va)) ((cam tuc) OR (cam xuc)) ban thinh le cua vat*.