Perhaps you should try some spelling variations:
thuoc dang » thuoc dung, thuoc khang, thuc dan
dang thanh » dong thanh, dang hanh, hoang thanh
cam thuoc » cay thuoc, nam thuoc, lam thuoc
thanh vai » thanh hai, thanh van, thanh tai
thu sach » tu sach, thuat sach, thuoc sach
vu khac » vu kham, vu khanh, bui khac
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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

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