Perhaps you should try some spelling variations:
"coder coder dose optimization method" » "coder coder dose optimization methods" (Expand search), "coder coder route optimization method" (Expand search), "coder coder the optimization method" (Expand search), "coder coder time optimization method" (Expand search), "coder decoder dose optimization method" (Expand search), "code code dose optimization method" (Expand search), "decoder codec dose optimization method" (Expand search), "coder codes jose optimization method" (Expand search), "coder powder doses optimization method" (Expand search), "coder copper doses optimization method" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder dose optimization method") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder dose optimization method\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder dose optimization method ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder dose optimization method") OR ("api python python python programming"))*.