Perhaps you should try some spelling variations:
"coder code software validation problem" » "coder code software variation problem" (Expand search), "coder code software calibration problem" (Expand search), "coder code software realization problem" (Expand search), "coder cape software validation problem" (Expand search), "coder boxe software validation problem" (Expand search), "coder care software validation problem" (Expand search), "code code software validation problem" (Expand search), "modern code software validation problem" (Expand search), "color code software validation problem" (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), "rpa python 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 code software validation problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code software validation problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code software validation problem") OR ("api python python python programming"))*.