Perhaps you should try some spelling variations:
argument structure » document structure
structure analysis » structural analysis
life argument » line argument, line arguments, like arguments
cost analysis » content analysis
line segment » line segments
segment cost » segment case, segment across, segmental post

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: (( life argument structure analysis ) OR ( line segment cost analysis )).
• Adding a wildcard symbol may retrieve word variants: (( life argument structure analysis ) or ( line segment cost analysis ))*.