Perhaps you should try some spelling variations:
"science perception in teaching programming" » "science perception in teaching program" (Expand search), "sense perception in teaching programming" (Expand search), "audience perceptions in teaching programming" (Expand search), "science conceptions in teaching programming" (Expand search), "science perception and teaching programming" (Expand search)
"advanced java programming coding program" » "advanced java programming using program" (Expand search), "advanced java programming code program" (Expand search), "advanced java programming computing program" (Expand search), "advanced and programming coding program" (Expand search), "advanced based programming coding program" (Expand search), "advanced goal programming coding program" (Expand search), "advanced java programming cloning program" (Expand search), "advanced java programming loading program" (Expand search), "advanced java programming cooling programs" (Expand search), "advanced data programming coding program" (Expand search), "advanced basal programming coding program" (Expand search), "advanced age programming coding 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: "((\"science perception in teaching programming\") OR (\"advanced java programming coding program\"))~".
• Removing quotes may allow a broader search: (( science perception in teaching programming ) OR ( advanced java programming coding program ))~.
• Adding a wildcard symbol may retrieve word variants: (("science perception in teaching programming") OR ("advanced java programming coding program"))*.