Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"tuc dan van snippets" » "thuc dan van snippets", "thuc day van snippets", "tung dan van snippets", "tuc dang van snippets", "tuc doan van snippets", "tuc dao van 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 ("tuc dan van snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tuc dan van snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tuc dan van snippets"))) or ("locating bug core snippets"))*.