Perhaps you should try some spelling variations:
"tran hung trong slippers" » "tran huong trong slippers", "tran dung trong slippers", "tran cung trong slippers", "tran hong trong slippers", "tran quang trong slippers", "tran hoang trong slippers", "tran hung trong slippery", "tran hung trong grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung java java snippets") or ("tran hung trong slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tran hung trong slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tran hung trong slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tran hung trong slippers"))) or ("locating bug code snippets"))*.