Perhaps you should try some spelling variations:
"tranh toan trac snippets" » "thanh toan trac snippets", "trinh toan trac snippets", "tinh toan trac snippets", "tranh toan tran snippets", "tranh thoan tran snippets", "tranh toan tap snippets", "tranh toan trac 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"

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