Perhaps you should try some spelling variations:
"using computational using computer program" » "and computational using computer program" (Expand search), "using computation using computer program" (Expand search), "using computations using computer program" (Expand search), "using computacional usinas computer program" (Expand search)
"based complications of coding program" » "band complications of coding program" (Expand search), "and complications of coding program" (Expand search), "based applications of coding program" (Expand search), "based implications of coding program" (Expand search), "based complications in coding program" (Expand search), "based complications of cloning program" (Expand search), "based complications of loading program" (Expand search), "based complications of cooling programs" (Expand search), "based complications non coding program" (Expand search)

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