Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu ve » hieu va, hieu van
thuc va » thuc dan, thuc day
tai cua » thai cua, tai cuc, tri cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai
ve am » va am

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang o hoi. hieu ve am ((thuc va) or (thuc vat)) doanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang o hoi. hieu ve am ((thuc va) OR (thuc vat)) doanh tai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang o hoi. hieu ve am ((thuc va) or (thuc vat)) doanh tai cua triet*.