Perhaps you should try some spelling variations:
"coder coder depth optimization problems" » "coder coder length optimization problems" (Expand search), "coder coder with optimization problems" (Expand search), "coder coder mesh optimization problems" (Expand search), "coder decoder depth optimization problems" (Expand search), "code code depth optimization problems" (Expand search), "decoder codec depth optimization problems" (Expand search), "coder cover depth optimization problems" (Expand search), "coder node depth optimization problems" (Expand search), "coder udder depth optimization problems" (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), "rpa python 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 coder depth optimization problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder depth optimization problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder depth optimization problems") OR ("api python python python programming"))*.