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