Perhaps you should try some spelling variations:
"trong tran hung slippers" » "trong trang hung slippers", "trong tranh hung slippers", "trong tan hung slippers", "trong tran hong slippers", "trong tran quang slippers", "trong tran hoang slippers", "trong tran hung slippery", "trong tran hung 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"

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