Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nham thuc » nhan thuc, nam thuc, nham thu
thuc day » thuc dan, thuc vat
toc sai » toc san, toc dai, thuoc sai
hieu ve » hieu va, hieu van
ve nham » ve nha, ve cham
sai ky » sac ky
nang o » nang co, nang ho, nang ro
va dai » va dao, vi dai, va dau
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: toc sai ky nang o hoi. hieu ve nham thuc day va dai cua triet~.
• Adding a wildcard symbol may retrieve word variants: toc sai ky nang o hoi. hieu ve nham thuc day va dai cua triet*.