Perhaps you should try some spelling variations:
thuc nguoi » toc nguoi
nguoi dao » nguoi tay
dao hanh » dao thanh, dang hanh, ban hanh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
ve thuc » va thuc
cua tu » cua tuc, cua su, cua te
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
nang o » nang co, nang ho, nang ro
cua cu » cua chu, cua cau, cua su
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: su sac ky nang o hoi. hieu ve thuc nguoi dao hanh di ((cua tre) or (((cua tu) OR (cua cu))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang o hoi. hieu ve thuc nguoi dao hanh di ((cua tre) OR (((cua tu) OR (cua cu))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang o hoi. hieu ve thuc nguoi dao hanh di ((cua tre) or (((cua tu) OR (cua cu))))*".