Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung len mung slippers" » "dung nen mung slippers", "dung le mung slippers", "dung luan mung slippers", "dung den muong slippers", "dung len duong slippers", "dung len mung slippery", "dung len mung 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 ("dung len mung slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dung len mung slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dung len mung slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dung len mung slippers"))) or ("locating bug code snippets"))*.