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 cau data snippets" » "cong cu data snippets", "cong chuc data snippets", "thong cau data snippets", "cong a data snippets", "cong cau hat snippets", "cong cau danh 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 cau 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 cau data snippets") OR ("dung java java snippets"))) OR ("locating bugs code slippers")).
• Removing quotes may allow a broader search: (((( cong cau data snippets ) or ( dung java java snippets ))) or ( locating bugs code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cau data snippets") or ("dung java java snippets"))) or ("locating bugs code slippers"))*.