Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
thanh di » thanh de, thanh do, thanh dinh
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
cam luc » cau luc
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang o hoi. hieu va ((cam luc) or (cam xuc)) va ((thanh di) OR (thanh doi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang o hoi. hieu va ((cam luc) OR (cam xuc)) va ((thanh di) OR (thanh doi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang o hoi. hieu va ((cam luc) or (cam xuc)) va ((thanh di) OR (thanh doi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang o hoi. hieu va ((cam luc) or (cam xuc)) va ((thanh di) OR (thanh doi)) cua tre*.