Perhaps you should try some spelling variations:
"trac dinh tri snippets" » "tran dinh tri snippets", "trach tinh tri snippets", "xac dinh tri snippets", "trac chinh tri snippets", "trac dinh tri 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: (((("trac dinh tri snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trac dinh tri snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trac dinh tri snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trac dinh tri snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.