Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
nang mai » nang ma, nang tai, lang mai
cua quoc » cua 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
van anh » van thanh, tuan anh, van minh
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
anh di » danh di, xanh di, anh d

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 anh di ((cua quoc) 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 anh di ((cua quoc) OR (cua thuoc)).
• Adding a wildcard symbol may retrieve word variants: vu sach y nang mai hoi. hieu va cam xuc van anh di ((cua quoc) or (cua thuoc))*.