Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"ro trong dan slippers" » "ro trong dang slippers", "ro trong san slippers", "ro trong tan slippers", "dot trong dan slippers", "ro trong dan slippery", "ro trong dan grippers"
"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: "((((\"using java java snippets\") OR (\"ro trong dan slippers\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( ro trong dan slippers ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("ro trong dan slippers"))) OR ("locating bug code snippets"))*.