Perhaps you should try some spelling variations:
"tran hoang lang slippers" » "quan hoang lang slippers", "tran quang lang slippers", "tranh hang lang slippers", "tran hoang long slippers", "tran hoang van slippers", "tran hoang anh slippers", "tran hoang lang slippery", "tran hoang lang 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 ("tran hoang lang 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 hoang lang slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tran hoang lang slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tran hoang lang slippers"))) or ("locating bug code snippets"))*.