Perhaps you should try some spelling variations:
"dung java java slippery" » "dung va java slippery", "dung java java slippers"
"phan trac ho snippets" » "phan tap ho snippets", "phan cac ho snippets", "phan tan ho snippets", "phan trac hoc snippets", "phan trao ho snippets", "phan trac nha 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 slippery\") OR (\"phan trac ho snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java slippery ) OR ( phan trac ho snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java slippery") OR ("phan trac ho snippets"))) OR ("locating bug code snippets"))*.