Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"van tham can snippets" » "van thanh can snippets", "van tuan can snippets", "van chat can snippets", "van tham canh snippets", "van pham can snippets", "van tham cung 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 ("van tham can snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van tham can snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van tham can snippets"))) or ("locating bug core snippets"))*.