Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dang vat java snippets" » "dang van java snippets", "dong vat java snippets", "dang nhat java snippets", "dang vat va snippets"
"using a java slippers" » "using _ java slippers", "using a java slippery", "using a java grippers"

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: "((((\"dang vat java snippets\") OR (\"using a java slippers\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( dang vat java snippets ) OR ( using a java slippers ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dang vat java snippets") OR ("using a java slippers"))) OR ("locating bugs code snippets"))*.