Perhaps you should try some spelling variations:
"advanced modulation and computer program" » "advanced calculation and computer program" (Expand search), "advanced oxidation and computer program" (Expand search), "advanced modulation in computer program" (Expand search), "advanced modulation of computer program" (Expand search), "advanced modulation _ computer program" (Expand search)
"and introduction in computing program" » "and introduction in consulting program" (Expand search), "and introduction in computador program" (Expand search), "and introduction in computer programs" (Expand search), "an introduction in computing program" (Expand search), "and introduction and computing program" (Expand search), "and introduction to computing program" (Expand search), "and introduction of computing program" (Expand search), "and introduction _ computing program" (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: "((\"and introduction in computing program\") OR (\"advanced modulation and computer program\"))~".
• Removing quotes may allow a broader search: (( and introduction in computing program ) OR ( advanced modulation and computer program ))~.
• Adding a wildcard symbol may retrieve word variants: (("and introduction in computing program") OR ("advanced modulation and computer program"))*.