Perhaps you should try some spelling variations:
"api _ python python programming" » "api _ pythons python programming" (Expand search), "api _ piton python programming" (Expand search), "api _ pitons python programming" (Expand search)
"coder coder decoder java program" » "coder encoder decoder java program" (Expand search), "coder coder codes java program" (Expand search), "coder coder xcode java program" (Expand search), "coder coder decoder java programs" (Expand search), "coder coder decoder java programa" (Expand search), "coder coder decoder viva program" (Expand search), "code code decoder java program" (Expand search), "decoder codec decoder java program" (Expand search), "codesc poder decoder java program" (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 decoder java program") OR ("api _ python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder decoder java program\") OR (\"api _ python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder decoder java program ) OR ( api _ python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder decoder java program") OR ("api _ python python programming"))*.