Perhaps you should try some spelling variations:
"trong from pre snippets" » "trong trot pre snippets", "trong from core snippets", "trong from bee snippets", "trong from e snippets"
"hang java java snippets" » "hang 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.

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