Perhaps you should try some spelling variations:
historia americana » history american, history americas, history america
lectura del » lectura de, lecture de, lectura en
lettura del » lettera del, lettura dei, lettura e
mexicana » mexican

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: ((lectura del) OR (lettura del)) ((historia americana) OR (historia mexicana)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lectura del) or (lettura del)) ((historia americana) OR (historia mexicana))".
• Adding a wildcard symbol may retrieve word variants: ((lectura del) or (lettura del)) ((historia americana) OR (historia mexicana))*.