Perhaps you should try some spelling variations:
"coder precoder scheduling integer programming" » "coder order scheduling integer programming" (Expand search), "coder power scheduling integer programming" (Expand search), "coder processor scheduling integer programming" (Expand search), "coder precoder scheduling linear programming" (Expand search), "coder decoder scheduling integer programming" (Expand search)
"api piton python python programming" » "api piton pythons python programming" (Expand search), "api piton pitons python programming" (Expand search), "api piton pytm python programming" (Expand search), "api pitons python python programming" (Expand search), "api in python python programming" (Expand search), "api with python python programming" (Expand search), "api 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 precoder scheduling integer programming") OR ("api piton python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder scheduling integer programming\") OR (\"api piton python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder scheduling integer programming ) OR ( api piton python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder scheduling integer programming") OR ("api piton python python programming"))*.