Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung dat dang snippets" » "dung va dang snippets", "dung tai dang snippets", "dung da dang snippets", "dung dat hang snippets", "dung dai dang 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 dat dang snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( dung dat dang snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") OR ("dung dat dang snippets"))) OR ("locating bug core snippets"))*.