Perhaps you should try some spelling variations:
"coder propagation code complexity from" » "mode propagation code complexity from" (Expand search), "model propagation code complexity from" (Expand search), "modes propagation code complexity from" (Expand search), "coder propagation mode complexity from" (Expand search), "coder propagation model complexity from" (Expand search), "coder propagation modes complexity from" (Expand search), "coder propagation case complexity from" (Expand search), "coder propagation care complexity from" (Expand search), "coder propagation the complexity from" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder propagation code complexity from\") OR (\"using using python python programming\"))~".
• Removing quotes may allow a broader search: (( coder propagation code complexity from ) OR ( using using python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder propagation code complexity from") OR ("using using python python programming"))*.