Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong cai dat slippers" » "dong tai dat slippers", "dong hai dat slippers", "dong cac dat slippers", "dong cai data slippers", "dong cai dat slippery", "dong cai 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: (((("dong cai 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: (((("dong cai dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cai dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cai dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.