Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung dat phap slippers" » "dung va phap slippers", "dung tai phap slippers", "dung dap phap slippers", "dung luat phap slippers", "dung danh phap slippers", "dung dat phap slippery", "dung dat phap 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 dat phap 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 dat phap slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat phap slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat phap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.