Perhaps you should try some spelling variations:
"locating bugs code slippers" » "locating bug code slippers"
"dung java java snippets" » "dung va java snippets"
"manh toan code snippets" » "thanh toan code snippets", "anh tuan code snippets", "tinh toan code snippets", "manh toan co snippets", "manh toan cong snippets", "manh toan de 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: (((("dung java java snippets") or ("manh toan code snippets"))) or ("locating bugs code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("manh toan code snippets"))) OR ("locating bugs code slippers")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( manh toan code snippets ))) or ( locating bugs code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("manh toan code snippets"))) or ("locating bugs code slippers"))*.