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