Perhaps you should try some spelling variations:
"dung anh cong snippets" » "dung anh code snippets", "dung danh cong snippets", "duong anh cong snippets", "dong anh cong snippets", "dung hanh cong snippets", "dung anh dong snippets", "dung thanh cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"data using java snippets" » "data using data 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 anh cong snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( dung anh cong snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("dung anh cong snippets"))) or ("locating bug core snippets"))*.