Perhaps you should try some spelling variations:
"ascending auction" » "ascending infection", "ascending aortic"
"descending colon" » "descending motor", "descending chain", "descending coronary"
"descending down" » "descending da", "descending pain", "descending sort"
"ascending colon" » "ascending chain"

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: (((("descending colon") OR ("descending down"))) OR ((("ascending colon") OR ("ascending auction")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"descending colon\") OR (\"descending down\"))) or (((\"ascending colon\") or (\"ascending auction\"))))".
• Removing quotes may allow a broader search: (((( descending colon ) OR ( descending down ))) or ((( ascending colon ) or ( ascending auction )))).
• Adding a wildcard symbol may retrieve word variants: (((("descending colon") OR ("descending down"))) or ((("ascending colon") or ("ascending auction"))))*.