Perhaps you should try some spelling variations:
"ro trong long snippets" » "ro trong code snippets", "ro trong luong snippets", "ro truong long snippets", "ro trong cong snippets", "dot trong long snippets"
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java 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: "((((\"ro trong long snippets\") OR (\"using java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( ro trong long snippets ) OR ( using java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("ro trong long snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.