Perhaps you should try some spelling variations:
su sach » so sach, vu sach
xanh di » vanh dai, xanh tai
danh di » danh du, danh dien, danh gia
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, xa hoi, me hoi
ve cam » ve cham, ve cac, va cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((ma hoi) OR (ma hoa)). hieu ve cam xuc va ((danh di) OR (xanh di)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((ma hoi) or (ma hoa)). hieu ve cam xuc va ((danh di) OR (xanh di)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((ma hoi) or (ma hoa)). hieu ve cam xuc va ((danh di) OR (xanh di)) cua tre*.