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