Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong anh tu slippers" » "hong anh tu slippers", "dong thanh tu slippers", "hoang anh tu slippers", "dong anh tuan slippers", "dong anh tu slippery", "dong anh tu 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 anh tu 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 anh tu slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong anh tu slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong anh tu slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.