Perhaps you should try some spelling variations:
"and functionality and coding program" » "and functional and coding program" (Expand search), "and functionality of coding program" (Expand search), "and functionality and cloning program" (Expand search), "and functionality and loading program" (Expand search), "and functionality and cooling programs" (Expand search), "and functionality and coping program" (Expand search), "and functionality and cooling program" (Expand search), "and functionality and cooking program" (Expand search)
"advanced oxidation using coding program" » "advanced oxidation in coding program" (Expand search), "advanced oxidation using cloning program" (Expand search), "advanced oxidation using loading program" (Expand search), "advanced oxidation using cooling programs" (Expand search), "advanced oxidation using coping program" (Expand search), "advanced oxidation using coating program" (Expand search), "advanced oxidation using cooking program" (Expand search)

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