Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
cac thuc » cach thuc, cac thu, can thuc
vuc nang » cuc nang, vu nang, chuc nang
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
thuc van » thuc vat, thuc dan, thuc va
hanh di » hanh vi, hanh de, hang di
so sanh » do sanh
van cac » van hac, van cau, van bac
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ((v nang) or (vuc nang)) xa hoi. hieu van cac thuc van hanh di ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ((v nang) OR (vuc nang)) xa hoi. hieu van cac thuc van hanh di ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: so sanh ((v nang) or (vuc nang)) xa hoi. hieu van cac thuc van hanh di ((cua triet) or (va triet))*.