Perhaps you should try some spelling variations:
"coder positioning errors coding program" » "coder positioning error coding program" (Expand search), "coder positioning theory coding program" (Expand search), "code positioning errors coding program" (Expand search), "camera positioning errors coding program" (Expand search), "body positioning errors coding program" (Expand search), "coder positioning errors cloning program" (Expand search), "coder positioning errors loading program" (Expand search), "coder positioning errors cooling programs" (Expand search), "coder positioning errors using program" (Expand search), "coder positioning errors during program" (Expand search)
"time propagation python python programming" » "time propagation method python programming" (Expand search), "time propagation path python programming" (Expand search), "time programmation python python programming" (Expand search), "the propagation python python programming" (Expand search), "fire propagation python python programming" (Expand search), "noise propagation python python programming" (Expand search), "time propagation pythons python programming" (Expand search), "time propagation piton python programming" (Expand search), "time propagation pitons 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 positioning errors coding program\") OR (\"time propagation python python programming\"))~".
• Removing quotes may allow a broader search: (( coder positioning errors coding program ) OR ( time propagation python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder positioning errors coding program") OR ("time propagation python python programming"))*.