Perhaps you should try some spelling variations:
"tran hung bi snippets" » "tran hong bi snippets", "tran quang bi snippets", "tran hoang bi snippets", "tran nhung bi snippets", "tran cung bi snippets", "tran hung vi snippets", "tran hung bi slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 hung bi snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( tran hung bi snippets ) OR ( dung java java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tran hung bi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets"))*.