Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
chat tuc » chat xuc, luat tuc, chat huu
cuu tre » cua tre, cau treo
va danh » va dinh, va dan, dia danh
te sach » toc sach
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, ban hanh
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 chat tuc ((va hanh) or (va danh)) dai ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang o hoi. hieu va chat tuc ((va hanh) OR (va danh)) dai ((cuu tre) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang o hoi. hieu va chat tuc ((va hanh) or (va danh)) dai ((cuu tre) OR (cau tren))*".