Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trinh co data slippers" » "trinh do data slippers", "trinh cong data slippers", "trinh hoa data slippers", "trinh co data slippery", "trinh co data grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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