Perhaps you should try some spelling variations:
thuoc ban » thuoc tan, thuoc dang, thu ban
nam thuoc » nam thuc, nam thu, nha thuoc
vu khach » vu khanh, vu khac, vay khach
thu sach » tu sach, thuat sach, thuoc sach
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
vai cua » dai cua, hai cua, lai cua
va nam » van nam, ha nam, va nay
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: ((vu khach) or (thu sach)) ky tang xa hoi. lieu va nam thuoc ban hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (thu sach)) ky tang xa hoi. lieu va nam thuoc ban hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (thu sach)) ky tang xa hoi. lieu va nam thuoc ban hanh vai cua te*.