Perhaps you should try some spelling variations:
doanh cua » doanh luan
nam thuoc » nam thuc, nam thu, nha thuoc
hieu van » hieu va, thien van, lieu va
thuoc va » thuc va, thuoc ma, thuong va
va doanh » van doanh, vay doanh, va danh
te sach » toc sach
ly nang » ky nang, ly hang, ly vang
cua cuu » cua chu, cua cau, cua cu
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, v nang, may nang
ho hoi » hoc hoi, hoa hoi, hoi hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((y nang) OR (ly nang)) ho hoi. hieu van nam thuoc va doanh cua cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) OR (ly nang)) ho hoi. hieu van nam thuoc va doanh cua cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) OR (ly nang)) ho hoi. hieu van nam thuoc va doanh cua cuu tre*.