Perhaps you should try some spelling variations:
"advanced computations and computer program" » "advanced computational and computer program" (Expand search), "advance computational and computer program" (Expand search), "advanced communications and computer program" (Expand search), "advanced computation and computer program" (Expand search), "advanced computations in computer program" (Expand search), "advanced computations _ computer program" (Expand search)
"advanced oxidation and coding program" » "advanced oxidation and cloning program" (Expand search), "advanced oxidation and loading program" (Expand search), "advanced oxidation and cooling programs" (Expand search), "advanced oxidation and coping program" (Expand search), "advanced oxidation and cooling program" (Expand search), "advanced oxidation and cooking program" (Expand search)

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