Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua quoc
nang mai » nang ma, nang tai, lang mai
van hanh » van thanh, ban hanh, van anh
cua nuoc » cua quoc, cua nguoi, nha nuoc
vu sach » vu bach, su sach, vu khach
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
y nang » ky nang, ly nang, v nang
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 sach y nang mai hoi. hieu va cam xuc van hanh di ((cua nuoc) or (cua thuoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang mai hoi. hieu va cam xuc van hanh di ((cua nuoc) OR (cua thuoc)).
• Adding a wildcard symbol may retrieve word variants: vu sach y nang mai hoi. hieu va cam xuc van hanh di ((cua nuoc) or (cua thuoc))*.