Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung dung cua snippets" » "duong dung cua snippets", "ung dung cua snippets", "dung ung cua snippets", "dung dung luan snippets", "dung dung cho snippets"
"locating bug core snippets" » "locating bug code 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 code snippets\") OR (\"dung dung cua snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( dung dung cua snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") OR ("dung dung cua snippets"))) OR ("locating bug core snippets"))*.