Perhaps you should try some spelling variations:
media energy » medium energy, asia energy, via energy
la didactica » la didattica, a didactic, a didactical
la didactic » a didactic, la didattica, _ didactic
media end » media en, media ed, media eine

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((media energy) OR (media end)) technologies de ((la didactic) OR (la didactica)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((media energy) or (media end)) technologies de ((la didactic) OR (la didactica))".
• Adding a wildcard symbol may retrieve word variants: ((media energy) or (media end)) technologies de ((la didactic) OR (la didactica))*.