Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
vu sach » vu bach, su sach, vu khach
so sanh » do sanh
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
cac duc » cac du, cao duc, cac dac
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) or (so sanh)) ky dang xay hoi. lieu va cac duc va hanh di ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (so sanh)) ky dang xay hoi. lieu va cac duc va hanh di ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (so sanh)) ky dang xay hoi. lieu va cac duc va hanh di ((cua triet) or (cua te))*.