Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
vat thanh » dat thanh, gat thanh, tat thanh
pham chuc » pham duc, pham huu, kham chua
thu bang » thu ban, thu hang, chu bang
chuc vat » thuc vat, chuc va, chuc van
vai cua » dai cua, hai cua, lai cua
va pham » van pham, va phat, va phap
so sach » so sanh, bo sach, co sach
hieu va » lieu va, hieu qua
ma hoi » mai hoi, xa hoi, me hoi
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((thu bang) or (thuc hanh)) ((ma hoi) or (ma hoa)). hieu va pham chuc vat thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((thu bang) OR (thuc hanh)) ((ma hoi) OR (ma hoa)). hieu va pham chuc vat thanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: so sach ((thu bang) or (thuc hanh)) ((ma hoi) or (ma hoa)). hieu va pham chuc vat thanh vai cua te*.