Perhaps you should try some spelling variations:
"coder string matching algorithmic complexity" » "coder string matching algorithm complexity" (Expand search), "coder string matching algorithms complexity" (Expand search), "coder string caching algorithm complexity" (Expand search), "cordel string matching algorithmic complexity" (Expand search), "closed string matching algorithmic complexity" (Expand search), "modelo string matching algorithmic complexity" (Expand search)
"api in python python programming" » "api in pythons python programming" (Expand search), "api in piton python programming" (Expand search), "api in pitons python programming" (Expand search), "api _ python python programming" (Expand search), "api an python python programming" (Expand search), "fpi in python python programming" (Expand search), "gpi in 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 string matching algorithmic complexity") OR ("api in python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder string matching algorithmic complexity\") OR (\"api in python python programming\"))".
• Removing quotes may allow a broader search: (( coder string matching algorithmic complexity ) OR ( api in python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder string matching algorithmic complexity") OR ("api in python python programming"))*.