Perhaps you should try some spelling variations:
"using complexation with coding program" » "using completion with coding program" (Expand search), "sn4 complexation with coding program" (Expand search), "using compilation with coding program" (Expand search), "using competition with coding program" (Expand search), "using combination with coding program" (Expand search), "using composition with coding program" (Expand search), "using complexation with cloning program" (Expand search), "using complexation with loading program" (Expand search), "using complexation with cooling programs" (Expand search), "housing complexation with coding program" (Expand search), "using computeration with coding program" (Expand search), "using complexation with coping program" (Expand search), "using complexation with cooking program" (Expand search), "using complexation with cocaine program" (Expand search)
"using complex and coding program" » "using complex and cloning program" (Expand search), "using complex and loading program" (Expand search), "using complex and cooling programs" (Expand search), "housing complex and coding program" (Expand search), "using computer and coding program" (Expand search), "using complexity and coding program" (Expand search), "using complex and coping program" (Expand search), "using complex and cooling program" (Expand search), "using complex and cooking program" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"using complex and coding program\") OR (\"using complexation with coding program\"))~".
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• Adding a wildcard symbol may retrieve word variants: (("using complex and coding program") OR ("using complexation with coding program"))*.