Perhaps you should try some spelling variations:
"based computational and coding program" » "and computational and coding program" (Expand search), "by computational and coding program" (Expand search), "based computational fluid coding program" (Expand search), "based computational and cloning program" (Expand search), "based computational and loading program" (Expand search), "based computational and cooling programs" (Expand search), "based computational and coping program" (Expand search), "based computational and cooling program" (Expand search), "based computational and cooking program" (Expand search)
"using imputation sparse coding program" » "using computation sparse coding program" (Expand search), "using imputation some coding program" (Expand search), "using imputation based coding program" (Expand search), "using mutation sparse coding program" (Expand search), "testing imputation sparse coding program" (Expand search), "using computational sparse coding program" (Expand search), "using imputation sparse cloning program" (Expand search), "using imputation sparse loading program" (Expand search), "using imputation sparse cooling programs" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based computational and coding program\") OR (\"using imputation sparse coding program\"))~".
• Removing quotes may allow a broader search: (( based computational and coding program ) OR ( using imputation sparse coding program ))~.
• Adding a wildcard symbol may retrieve word variants: (("based computational and coding program") OR ("using imputation sparse coding program"))*.