Perhaps you should try some spelling variations:
"tran trong ha slippers" » "gian trong ha slippers", "quan trong ha slippers", "tran trong nha slippers", "tran trong hai slippers", "tran trong hao slippers", "tran trong ha slippery", "tran trong ha 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"tran trong ha slippers\") OR (\"dung java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( tran trong ha slippers ) OR ( dung java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tran trong ha slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.