Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
cau luc » cau truc, cau phuc
hanh de » hanh ve, hanh kem
luc van » luoc van, luu van, duc van
hieu ve » hieu va, hieu van
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
ve cau » ke cau, va cau, ve cac
sac ky » cac ky, sai ky
ha hoi » hoa hoi, ha noi, xa hoi
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky lang ha hoi. hieu ve cau luc van ((hanh de) or (hanh vi)) ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang ha hoi. hieu ve cau luc van ((hanh de) OR (hanh vi)) ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: te sac ky lang ha hoi. hieu ve cau luc van ((hanh de) or (hanh vi)) ((cua triet) or (cua viet))*.