Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hoc cach dua slippers" » "hoc cac dua slippers", "hoc sach dua slippers", "cuoc cach dua slippers", "hoc cach cua slippers", "hoc cach dung slippers", "hoc cac du slippers", "hoc cach dua slippery", "hoc cach dua 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: (((("hoc cach dua slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc cach dua slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc cach dua slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc cach dua slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.