Perhaps you should try some spelling variations:
graphical charts » graphical chain, graphical reports, nautical charts
graphical chart » graphical chat, graphical chain, graphical part
graphical arts » graphical aids, graphical part, graphical assets

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: (((( graphical arts / technique ) OR ( graphical chart / technique ))) OR ( ((graphical charts) OR (graphic arts)) / technique )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( graphical arts / technique ) or ( graphical chart / technique ))) or ( ((graphical charts) OR (graphic arts)) / technique ))".
• Adding a wildcard symbol may retrieve word variants: (((( graphical arts / technique ) or ( graphical chart / technique ))) or ( ((graphical charts) OR (graphic arts)) / technique ))*.