Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tran hoc trinh slippers" » "tran doc trinh slippers", "tran hoc tinh slippers", "tran hoc sinh slippers", "toan hoc trinh slippers", "than hoc trinh slippers", "trac hoc trinh slippers", "tran hoc trinh slippery", "tran hoc trinh grippers"
"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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tran hoc trinh slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tran hoc trinh slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tran hoc trinh slippers"))) or ("locating bug code snippets"))*.