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