Perhaps you should try some spelling variations:
"layer bearing capacity" » "layer building capacity", "layer holding capacity", "layers tearing capacity", "layer heating capacity", "layer searching capacity"
"layer carrying capacity" » "layer drying capacity", "layer parking capacity"
"land carrying capacity" » "load carrying capacity", "plants carrying capacity", "dna carrying capacity"

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: (("layer bearing capacity") OR ((("layer carrying capacity") OR ("land carrying capacity"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"layer bearing capacity\") or (((\"layer carrying capacity\") OR (\"land carrying capacity\"))))~".
• Removing quotes may allow a broader search: (( layer bearing capacity ) or ((( layer carrying capacity ) OR ( land carrying capacity ))))~.
• Adding a wildcard symbol may retrieve word variants: (("layer bearing capacity") or ((("layer carrying capacity") OR ("land carrying capacity"))))*.