Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
van pham » san pham, van phan, van phat
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
mai hoi » mai khoi, dai hoi, lai hoi
vai cua » dai cua, hai cua, lai cua
cua tuc » cua duc, cua tu, cua thuoc
ty hang » ly hang, thi hang, thu hang
ma hoi » xa hoi, ma hoa, me hoi

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)) ((ma hoi) OR (mai hoi)). hieu van pham duc va thanh vai cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty hang) OR (ty xang)) ((ma hoi) OR (mai hoi)). hieu van pham duc va thanh vai cua tuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty hang) or (ty xang)) ((ma hoi) OR (mai hoi)). hieu van pham duc va thanh vai cua tuc".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty hang) or (ty xang)) ((ma hoi) OR (mai hoi)). hieu van pham duc va thanh vai cua tuc*.