Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung tue nhan slippers" » "dung tu nhan slippers", "dung te nhan slippers", "dung tuyen nhan slippers", "dung cu nhan slippers", "dung tue nhan slippery", "dung tue nhan 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 tue nhan 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 tue nhan slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tue nhan slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tue nhan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.