Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
vu khach » vu khanh, vu khac, vay khach
cac thuc » cach thuc, can thuc, cay thuc
te sach » toc sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cac thu » cach thuc, cac thoi
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (te sach)) ky lang xa hoi. lieu va ((cac thuc) OR (cac thu)) ban thanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu khach) or (te sach)) ky lang xa hoi. lieu va ((cac thuc) OR (cac thu)) ban thanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (te sach)) ky lang xa hoi. lieu va ((cac thuc) OR (cac thu)) ban thanh vai cua tre*.