Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung dan biet snippets" » "dung dat biet snippets", "dung san biet snippets", "tung dan biet snippets", "dung can biet snippets", "dung dac biet snippets", "dung dan viet snippets"
"locating bug core snippets" » "locating bug code snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("dung dan biet snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dung dan biet snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dung dan biet snippets"))) or ("locating bug core snippets"))*.