Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cam thuc » am thuc, nam thuc, cam thu
toc sach » hoc sach, doc sach, thuoc sach
danh bat » doanh bat, anh bai, dinh ba
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam

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) or (toc sach)) y nang xa hoi. hieu ve cam thuc va ((doanh van) or (danh bat)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y nang xa hoi. hieu ve cam thuc va ((doanh van) OR (danh bat)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) y nang xa hoi. hieu ve cam thuc va ((doanh van) or (danh bat)) cuu tre*.