Perhaps you should try some spelling variations:
thanh di » thanh doi, thanh de, thanh do
truc van » truc va, thuc van, truc ban
su sach » vu sach
tuc van » thuc van, tuc va, duc van
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
di cuu » di cau, di cua, dinh cuu
va dau » va dao

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) OR (so sach)) ty nang xa hoi. lieu va dau ((tuc van) OR (truc van)) thanh di cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty nang xa hoi. lieu va dau ((tuc van) or (truc van)) thanh di cuu tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ty nang xa hoi. lieu va dau ((tuc van) or (truc van)) thanh di cuu tre*.