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 in computador program" » "advanced oxidation in computador programas" (Expand search), "advanced oxidation in computador programacao" (Expand search), "advanced oxidation in computador protecao" (Expand search), "advanced oxidation mini computador program" (Expand search), "advanced oxidation via computador program" (Expand search), "advanced oxidation en computadora program" (Expand search), "advanced oxidation and computador program" (Expand search), "advanced oxidation of computador program" (Expand search)

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

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