Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cua hap slippers" » "dung luan hap slippers", "dung cho hap slippers", "dung cua phap slippers", "dung cua tap slippers", "dung cua hai slippers", "dung cua hap slippery", "dung cua hap 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 cua hap 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 cua hap slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cua hap slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cua hap slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.