Perhaps you should try some spelling variations:
cay thuoc » nam thuoc, va thuoc
cua thuoc » nha thuoc, cua nuoc, cua quoc
vien dai » hien dai
nang doi » nang doc, nang noi, hang doi
lam nang » cam nang, lam sang, lam nong
thu sach » tu sach, thuat sach, thuoc sach
luc lam » luc luan, duoc lam
nang xa » nang x, lang xa, nang ma
ve cam » ve cham, ve cac, va cam
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu ((ve cam) or (vien dai)) luc lam nang doi ((cua thuoc) OR (cay thuoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu ((ve cam) OR (vien dai)) luc lam nang doi ((cua thuoc) OR (cay thuoc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. hieu ((ve cam) or (vien dai)) luc lam nang doi ((cua thuoc) OR (cay thuoc))".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ((ve cam) or (vien dai)) luc lam nang doi ((cua thuoc) OR (cay thuoc))*.