Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung le lanh snippets" » "dung len lanh snippets", "dung he lanh snippets", "dung de lanh snippets", "dung le anh snippets", "dung le manh snippets", "dung le danh 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 le lanh snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dung le lanh snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dung le lanh snippets"))) or ("locating bug core snippets"))*.