Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
sach duy » sach dung, sach duoc, sach dao
va thanh » gia thanh, ban thanh, va tinh
duy sang » duy van, duy can, duy anh
mai hoi » mai khoi, lai hoi, mai doi
dai hoi » dai hoc, dai hai, dai moi
hieu ve » hieu van
hieu va » lieu va, hieu qua
tu sach » thu sach, su sach, te sach
xuc va » duc va, tuc va, luc va

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 duy sang ((mai hoi) or (dai hoi)). ((hieu ve) or (hieu va)) cam xuc va thanh dai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach duy sang ((mai hoi) OR (dai hoi)). ((hieu ve) OR (hieu va)) cam xuc va thanh dai cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sach duy sang ((mai hoi) or (dai hoi)). ((hieu ve) or (hieu va)) cam xuc va thanh dai cua vat*.