Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vat thanh » dat thanh, gat thanh, tat thanh
chat cua » nhat cua, chat va, chat huu
thanh de » hanh de, thanh ve, thanh do
te sach » toc sach
hieu vu » hieu va, hieu su, dieu vu
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
de cua » le cua, te cua, dieu cua
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 vu) or (hieu ve)) chat cua vat thanh de cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang o hoi. ((hieu vu) OR (hieu ve)) chat cua vat thanh de cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach y nang o hoi. ((hieu vu) or (hieu ve)) chat cua vat thanh de cua triet*.