Perhaps you should try some spelling variations:
toc sach » hoc sach, thuoc sach, nuoc sach
thanh vi » hanh vi, thanh va, thanh ve
doc sach » hoc sach, nuoc sach, dac sac
va thanh » gia thanh, ban thanh, va tinh
hieu ve » hieu va, hieu van
luu tre » luu tru, cuu tre, luy tre
ly nang » ky nang, ly hang, ly vang
co hoi » co hoc, co loi
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi luu » vi lua

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: ((toc sach) OR (doc sach)) ly nang ((co hoi) OR (cau hoi)). hieu ve cam xuc va thanh vi luu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (doc sach)) ly nang ((co hoi) or (cau hoi)). hieu ve cam xuc va thanh vi luu tre~".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (doc sach)) ly nang ((co hoi) or (cau hoi)). hieu ve cam xuc va thanh vi luu tre*.