Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
vai cua » dai cua, hai cua, lai cua
qua ban » cua ban, qua quan
cay qua » cau qua, cac qua, cay lua
van cay » van cau, van bay, van ca
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
te sach » toc sach
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: ((su sach) or (te sach)) ky nang ((mai hoi) OR (lai hoi)). hieu van cay qua ban thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky nang ((mai hoi) OR (lai hoi)). hieu van cay qua ban thanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (te sach)) ky nang ((mai hoi) OR (lai hoi)). hieu van cay qua ban thanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky nang ((mai hoi) OR (lai hoi)). hieu van cay qua ban thanh vai cua te*.