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