Perhaps you should try some spelling variations:
"coder coding string tddft computational" » "coder coding string dft computational" (Expand search), "coder coding string and computational" (Expand search), "coder coding string cfd computational" (Expand search), "coder coding using tddft computational" (Expand search), "coder sewing string tddft computational" (Expand search), "coder comparing string tddft computational" (Expand search), "modern coding string tddft computational" (Expand search), "color coding string tddft computational" (Expand search), "odor coding string tddft computational" (Expand search), "coder coding string test computational" (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 coding string tddft computational\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding string tddft computational ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding string tddft computational") OR ("api python python python programming"))*.