Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"using java java snippets" » "using data java snippets"
"dung hieu java snippets" » "dong hieu java snippets", "dung tieu java snippets", "trung hieu java snippets", "dung hieu va 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 hieu java snippets") or ("using java java snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung hieu java snippets") OR ("using java java snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dung hieu java snippets ) or ( using java java snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hieu java snippets") or ("using java java snippets"))) or ("locating bug code slippers"))*.