Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
hieu ca » hieu cac, hieu cua, hieu va
danh di » danh du, xanh di, danh dien
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
luc va » tuc va, loc va
di cua » dai cua, doi cua, de 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 ca nhan ((luc va) or (duc va)) danh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang o hoi. hieu ca nhan ((luc va) OR (duc va)) danh di cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach y nang o hoi. hieu ca nhan ((luc va) or (duc va)) danh di cua triet*.