Perhaps you should try some spelling variations:
"ostial angle" » "optimal angle", "optical angle", "optical angles"
"radial axle" » "radial angle", "radial axial"
"radial axis" » "radial basis", "radial axial", "medial axis"
"axial angle" » "radial angle", "axial age", "axial ranges"

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: (((("radial axle") OR ("radial axis"))) OR ((("ostial angle") OR ("axial angle")))).
• Removing quotes may allow a broader search: (((( radial axle ) or ( radial axis ))) or ((( ostial angle ) or ( axial angle )))).
• Adding a wildcard symbol may retrieve word variants: (((("radial axle") or ("radial axis"))) or ((("ostial angle") or ("axial angle"))))*.