Perhaps you should try some spelling variations:
"toan doi trinh snippets" » "toan doc trinh snippets", "toan doi tinh snippets", "toan dong trinh snippets", "toan roi trinh snippets", "toan dai trinh snippets", "hoan doi trinh snippets", "toan doi trinh 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: (((("toan doi trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan doi trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan doi trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan doi trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.