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