Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"san tao trinh slippers" » "san tao tinh slippers", "san tho trinh slippers", "san giao trinh slippers", "sang tao trinh slippers", "san bao trinh slippers", "san tay trinh slippers", "san tao trinh slippery", "san tao trinh 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 ("san tao trinh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("san tao trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( san tao trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("san tao trinh slippers"))) or ("locating bug code snippets"))*.