Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung rong lon snippets" » "dung trong lon snippets", "dung cong lon snippets", "dung dong lon snippets", "dung vong lon snippets", "dung trong long snippets"
"locating bug core snippets" » "locating bug code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java code snippets") OR ("dung rong lon snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using java code snippets\") OR (\"dung rong lon snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( dung rong lon snippets ))) OR ( locating bug core snippets ))*.