Perhaps you should try some spelling variations:
"tran trinh java snippets" » "trang trinh java snippets", "tra trinh java snippets", "thanh trinh java snippets"
"dung vbug code snippets" » "dung vung code snippets", "dung vbung code snippets", "dung vbugs code snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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