Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thanh dai » thanh hai, thanh tai, thanh dat
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
nang mai » nang ma, nang tai, lang mai
mai khoi » mai khoa, tai khoa, cac khoi
xuc van » duc van, luc van, vuc van
tu cach » tu cac
va cao » va cac, va co, va dao
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thu sach)) y nang mai khoi. hieu ((va cam) or (va cao)) xuc van thanh dai cua thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) y nang mai khoi. hieu ((va cam) OR (va cao)) xuc van thanh dai cua thuoc.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) y nang mai khoi. hieu ((va cam) or (va cao)) xuc van thanh dai cua thuoc*.