Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
thuoc ban » thuoc tan, thuoc dang, thu ban
ban doanh » van doanh, san doanh, ban danh
doanh van » doan van, doanh va, doanh ban
hieu van » hieu va, thien van, lieu va
cau treo » cau theo, cau tren, cau triet
tu sach » thu sach, su sach, tu cach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
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: ((tu sach) OR (te sach)) y nang xa hoi. hieu van nam thuoc ban doanh van cau treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) y nang xa hoi. hieu van nam thuoc ban doanh van cau treo".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) y nang xa hoi. hieu van nam thuoc ban doanh van cau treo*.