Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"khung hoc phi slippers" » "chung hoc phi slippers", "nhung hoc phi slippers", "thuong hoc phi slippers", "khung hoc pho slippers", "khung hoc chi slippers", "khung hoc khi slippers", "khung hoc phi slippery", "khung hoc phi 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: (((("dung java java snippets") or ("khung hoc phi slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("khung hoc phi slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( khung hoc phi slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("khung hoc phi slippers"))) or ("locating bug code snippets"))*.