Perhaps you should try some spelling variations:
legislaciones penales » legislacion penal (Expand Search), legislaciones civiles (Expand Search), legislativas penales (Expand Search)
aproximacion las » aproximacion a (Expand Search), aproximacion aos (Expand Search), aproximacion legal (Expand Search)
aproximacion al » aproximacion a (Expand Search)
y procesales » y procesal (Expand Search), y procesos (Expand Search)
penales y » penales en (Expand Search), personales y (Expand Search)

Try widening your search to All Fields.

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

• Removing quotes may allow a broader search: ((aproximacion las) OR (aproximacion al)) legislaciones penales y procesales.