Perhaps you should try some spelling variations:
"locating bugs code slippers" » "locating bug code slippers", "locating bugs code snippets"
"dung java java snippets" » "dung va java snippets"
"cong cac data snippets" » "cuong cac data snippets", "cong tac data snippets", "cong cau data snippets", "cong cac dan snippets", "cong cac dang snippets", "cong cac dai 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: (((("cong cac data snippets") or ("dung java java snippets"))) or ("locating bugs code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cac data snippets") OR ("dung java java snippets"))) OR ("locating bugs code slippers")).
• Removing quotes may allow a broader search: (((( cong cac data snippets ) or ( dung java java snippets ))) or ( locating bugs code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cac data snippets") or ("dung java java snippets"))) or ("locating bugs code slippers"))*.