Perhaps you should try some spelling variations:
"dung thu chat snippets" » "dung thu code snippets", "ung thu chat snippets", "dung phu chat snippets", "dung thi chat snippets", "dung thu nhat snippets", "dung thu thuat snippets", "dung thuc chan 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("data using java snippets") or ("dung thu chat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using java snippets") OR ("dung thu chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( data using java snippets ) or ( dung thu chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") or ("dung thu chat snippets"))) or ("locating bug core snippets"))*.