Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung he mac slippers" » "dung cho mac slippers", "dung he bac slippers", "dung he cac slippers", "dung he mat slippers", "dung he mac slippery", "dung he mac 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 he mac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung he mac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung he mac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung he mac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.