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