Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
toc sach » hoc sach, doc sach, thuoc sach
dang mai » dang hai, dang mau, dang bai
danh vai » danh sai, danh va, dang van
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ky dang mai hoi. hieu ve cam xuc va ((danh vai) or (doanh van)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky dang mai hoi. hieu ve cam xuc va ((danh vai) OR (doanh van)) cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky dang mai hoi. hieu ve cam xuc va ((danh vai) or (doanh van)) cua tre*.