Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dat van thinh snippets" » "dat van thanh snippets", "dat van chinh snippets", "dat van minh snippets", "dao van thinh snippets", "dat va thinh snippets", "dam van thinh 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 ("dat van thinh snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dat van thinh snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dat van thinh snippets"))) or ("locating bug core snippets"))*.