Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"chan van phan snippets" » "chuan van phan snippets", "phan van phan snippets", "nhan van phan snippets", "chan van phong snippets", "chan van thanh snippets", "chan luan phan 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 ("chan van phan snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( chan van phan snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("chan van phan snippets"))) or ("locating bug core snippets"))*.