Perhaps you should try some spelling variations:
"using compositional process screening program" » "using composting process screening program" (Expand search), "using computational process screening program" (Expand search), "in compositional process screening program" (Expand search), "music compositional process screening program" (Expand search), "using compositional process scheduling program" (Expand search)
"using computation _ coding program" » "using computational _ coding program" (Expand search), "using imputation _ coding program" (Expand search), "using compilation _ coding program" (Expand search), "using computation _ cloning program" (Expand search), "using computation _ loading program" (Expand search), "using computation _ cooling programs" (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: (("using compositional process screening program") OR ("using computation _ coding program"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using compositional process screening program\") OR (\"using computation _ coding program\"))".
• Removing quotes may allow a broader search: (( using compositional process screening program ) OR ( using computation _ coding program )).
• Adding a wildcard symbol may retrieve word variants: (("using compositional process screening program") OR ("using computation _ coding program"))*.