Perhaps you should try some spelling variations:
"coder estimation algorithm _ program" » "coder estimation algorithms _ program" (Expand search), "coder optimization algorithm _ program" (Expand search), "coder optimization algorithms _ program" (Expand search), "model estimation algorithm _ program" (Expand search), "power estimation algorithm _ program" (Expand search), "color estimation algorithm _ program" (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.

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