Perhaps you should try some spelling variations:
"doi nguoi bana snippets" » "doi nguoi ban snippets", "doi nguoi benh snippets", "doi nguoi san snippets", "moi nguoi bana snippets", "cuoi nguoi bana snippets", "con nguoi bana snippets", "doi nguoi bana 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: (((("doi nguoi bana snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi nguoi bana snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi nguoi bana snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi nguoi bana snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.