Perhaps you should try some spelling variations:
thanh di » thanh doi, thanh de, thanh do
va thanh » gia thanh, ban thanh, va tinh
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
ky lang » ky nang, tay lang
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
luc va » duc va, tuc va, loc va
di cua » dai cua, doi cua, de cua

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 lang) OR (((ky tang) OR (ky dang)))) xa hoi. hieu ve cac luc va thanh di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky lang) or (((ky tang) OR (ky dang)))) xa hoi. hieu ve cac luc va thanh di cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky lang) or (((ky tang) OR (ky dang)))) xa hoi. hieu ve cac luc va thanh di cua tre*.