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