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