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 _ computing program" » "advanced oxidation _ consulting program" (Expand search), "advanced oxidation _ computador program" (Expand search), "advanced oxidation _ computer programs" (Expand search)

You may be able to get more results by adjusting your search query.

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