Perhaps you should try some spelling variations:
"coder costing methods semidefinite programming" » "coder costing set semidefinite programming" (Expand search), "coder costing the semidefinite programming" (Expand search), "coder costing to semidefinite programming" (Expand search), "order costing methods semidefinite programming" (Expand search), "powder coating methods semidefinite programming" (Expand search), "other costing methods semidefinite programming" (Expand search)
"rpa python python python programming" » "rpa pythons python python programming" (Expand search), "rpa piton python python programming" (Expand search), "rpa pitons python python programming" (Expand search), "via python 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 costing methods semidefinite programming") OR ("rpa python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder costing methods semidefinite programming\") OR (\"rpa python python python programming\"))".
• Removing quotes may allow a broader search: (( coder costing methods semidefinite programming ) OR ( rpa python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder costing methods semidefinite programming") OR ("rpa python python python programming"))*.