Perhaps you should try some spelling variations:
thanh ly » thanh lay, thanh ky, thanh le
thuc ban » thuoc ban, thuc dan, thu ban
tu sach » thu sach, su sach, te sach
tuc ban » truc ban, tu ban, tuc dan
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ty hang » ly hang, thi hang, thu hang
ly cua » le 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) or (ty xang)) xa hoi. hieu ve cham ((tuc ban) OR (thuc ban)) thanh ly cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty hang) OR (ty xang)) xa hoi. hieu ve cham ((tuc ban) OR (thuc ban)) thanh ly cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty hang) or (ty xang)) xa hoi. hieu ve cham ((tuc ban) OR (thuc ban)) thanh ly cua vat".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty hang) or (ty xang)) xa hoi. hieu ve cham ((tuc ban) OR (thuc ban)) thanh ly cua vat*.