Perhaps you should try some spelling variations:
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"value perceptions of java programming" » "value perception of java programming" (Expand search), "care perceptions of java programming" (Expand search), "the perceptions of java programming" (Expand search), "value perceptions of and programming" (Expand search), "value perceptions of based programming" (Expand search), "value perceptions of goal programming" (Expand search), "value perceptions of japan programming" (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: "((\"value perceptions of java programming\") OR (\"advanced python python computer programming\"))~".
• Removing quotes may allow a broader search: (( value perceptions of java programming ) OR ( advanced python python computer programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("value perceptions of java programming") OR ("advanced python python computer programming"))*.