Perhaps you should try some spelling variations:
thanh veen » thanh vien, thanh van, thanh nien
thieu nien » thien nhien
thanh ve » hanh ve, thanh va, thanh vien
nien cac » vien cac, dien cac, bien cac
su sach » so sach, vu sach
cac luc » cau luc, coc luc, cac nuoc
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
luc va » duc va, tuc va, loc va
cua te » cua tu

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