Perhaps you should try some spelling variations:
"coder coder sectional c programming" » "coder code section c programming" (Expand search), "coder or sectional c programming" (Expand search), "coder crosss sectional c programming" (Expand search), "coder coder sectional _ programming" (Expand search), "coder coder sectional cone programming" (Expand search), "coder coder sectional and programming" (Expand search), "coder decoder sectional c programming" (Expand search), "code code sectional c programming" (Expand search), "decoder codec sectional c programming" (Expand search), "coder coder sectional 5 programming" (Expand search), "coder coder sectional 1h programming" (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 sectional c programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sectional c programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder sectional c programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder sectional c programming") OR ("api python python python programming"))*.