Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh hai » thanh phan, thanh hoa, thanh san
cua viet » ca viet, hoa viet, cua vat
thi hang » thi hanh, thi hong, thi thanh
thi nang » thi cong, ki nang, thi hanh
hieu va » lieu va, hieu qua
hai cua » thai cua, dai cua, hoi cua
xuc ban » duc ban, cuc ban, quoc ban
tu sach » thu sach, su sach, te sach
hieu ve » hieu van

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 ((thi hang) OR (thi nang)) xa hoi. ((hieu ve) or (hieu va)) cam xuc ban thanh hai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thi hang) OR (thi nang)) xa hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh hai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thi hang) OR (thi nang)) xa hoi. ((hieu ve) or (hieu va)) cam xuc ban thanh hai cua viet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thi hang) OR (thi nang)) xa hoi. ((hieu ve) or (hieu va)) cam xuc ban thanh hai cua viet*.