Perhaps you should try some spelling variations:
"dung java java grippers" » "dung va java grippers", "dung java java slippers"
"phan thuc so snippets" » "nhan thuc so snippets", "phap thuc so snippets", "pham thuc so snippets", "phan thuoc so snippets", "phan thuc co snippets", "phan thuc su snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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: "((((\"dung java java grippers\") OR (\"phan thuc so snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java grippers ) OR ( phan thuc so snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java grippers") OR ("phan thuc so snippets"))) OR ("locating bug code snippets"))*.