Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thuoc sac » thuoc sach, thuoc dac, thuoc sai
thanh vai » thanh hai, thanh van, thanh tai
va triet » va trien, ve triet, cua triet
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sac ky tang ma hoi. hieu va cam luc van thanh vai ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sac ky tang ma hoi. hieu va cam luc van thanh vai ((va triet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: thuoc sac ky tang ma hoi. hieu va cam luc van thanh vai ((va triet) or (va thiet))*.