Perhaps you should try some spelling variations:
"coder function test by problem" » "modern function test by problem" (Expand search), "power function test by problem" (Expand search), "over function test by problem" (Expand search), "coder function tests by problem" (Expand search), "coder function test by problems" (Expand search), "coder function test ay problem" (Expand search), "coder function test my problem" (Expand search)
"using using python python programming" » "using using pythons python programming" (Expand search), "using using piton python programming" (Expand search), "using using pitons python programming" (Expand search), "using usando python python programming" (Expand search), "using in python python programming" (Expand search), "using fusing python python programming" (Expand search), "housing using python python programming" (Expand search), "nursing using python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder function test by problem\") OR (\"using using python python programming\"))~".
• Removing quotes may allow a broader search: (( coder function test by problem ) OR ( using using python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder function test by problem") OR ("using using python python programming"))*.