Perhaps you should try some spelling variations:
"tran dang tao slippers" » "tran quang tao slippers", "tran hoang tao slippers", "tranh hang tao slippers", "tran sang tao slippers", "tran nang tao slippers", "tran vang tao slippers", "tran dang tao slippery", "tran dang tao 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 dang tao slippers\") OR (\"dung java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( tran dang tao slippers ) OR ( dung java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tran dang tao slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.