Perhaps you should try some spelling variations:
nhan thuc » nhan luc, dan thuc, toan thuc
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
vu khach » vu khanh, vu khac, vay khach
thu sach » tu sach, thuat sach, thuoc sach
thuc ban » thuoc ban, thuc dan, thu ban
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
va nhan » van nhan, ca nhan, va phan
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu khach) or (thu sach)) ky tang xa hoi. lieu va nhan thuc ban thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (thu sach)) ky tang xa hoi. lieu va nhan thuc ban thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (thu sach)) ky tang xa hoi. lieu va nhan thuc ban thanh vai cua tre*.