Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tac danh dat slippers" » "sach danh dat slippers", "cac doanh dat slippers", "cac dan dat slippers", "tac danh bat slippers", "tac dinh dat slippers", "tac dan dat slippers", "tac danh dat slippery", "tac danh 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: (((("tac danh 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: (((("tac danh dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac danh dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac danh dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.