Perhaps you should try some spelling variations:
"based computational on computer program" » "and computational on computer program" (Expand search), "by computational on computer program" (Expand search), "based computational one computer program" (Expand search), "based computacional on computer program" (Expand search), "based computational and computer program" (Expand search), "based computational in computer program" (Expand search), "based computational en computer program" (Expand search)
"advanced oxidation code computing program" » "advanced oxidation code consulting program" (Expand search), "advanced oxidation code computador program" (Expand search), "advanced oxidation code computer programs" (Expand search), "advanced oxidation model computing program" (Expand search), "advanced oxidation co computing program" (Expand search), "advanced oxidation more computing program" (Expand search), "advanced oxidation models computing program" (Expand search), "advanced oxidation modern computing program" (Expand search), "advances oxidation code computing program" (Expand search)

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced oxidation code computing program\") OR (\"based computational on computer program\"))~".
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