Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
hieu tu » chieu tu, hieu tuc, hien tu
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
nang o » nang co, nang ho, nang ro
va dan » ca dan, va dao, va dau
dan di » danh di, dan da, dan de
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 v nang o hoi. hieu tu ((nhan luc) or (nang luc)) va dan di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang o hoi. hieu tu ((nhan luc) OR (nang luc)) va dan di cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach v nang o hoi. hieu tu ((nhan luc) or (nang luc)) va dan di cua triet*.