Perhaps you should try some spelling variations:
crisis perez » crisis permo, cristina perez, crisis pobreza
medicion en » mediacion en, edicion en, medicion e
del martir » del martin, del martirio, del martes
del master » del malestar, del misterio
edicion de » medicion de
de crisis » la crisis
en campo » el campo, un campo, del campo

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( medicion en campo ((del martir) OR (del master)) p ; ) or ( edicion de crisis perez la paz ; ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( medicion en campo ((del martir) OR (del master)) p ; ) OR ( edicion de crisis perez la paz ; )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( medicion en campo ((del martir) OR (del master)) p ; ) or ( edicion de crisis perez la paz ; ))".
• Adding a wildcard symbol may retrieve word variants: (( medicion en campo ((del martir) OR (del master)) p ; ) or ( edicion de crisis perez la paz ; ))*.