Perhaps you should try some spelling variations:
thuoc sac » thuoc sach, thuoc dac, thuoc sai
nang lai » nang tai, mang lai, nang cai
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
lai hoa » dai hoa, loai hoc
hieu ve » hieu va, hieu van
luc van » luoc van, luu van, duc van
cua tre » cuu tre, cua triet, dua tren
sac ky » cac ky, sai ky
co luc » coc luc, co luy
cua te » cua tu
ve co » vo co, va co, de co

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 nang lai hoa. hieu ve co luc van hanh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sac ky nang lai hoa. hieu ve co luc van hanh vai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thuoc sac ky nang lai hoa. hieu ve co luc van hanh vai ((cua tre) or (cua te))*.