Perhaps you should try some spelling variations:
"tran nhan dat slippers" » "tran nhat dat slippers", "tan nhan dat slippers", "tran han dat slippers", "tran nhan dan slippers", "tran nhan vat slippers", "tran nhan dai slippers", "tran nhan dat slippery", "tran nhan dat 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: (((("tran nhan 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 nhan dat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran nhan dat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran nhan dat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.