Perhaps you should try some spelling variations:
"yang danh tu slippers" » "dang dinh tu slippers", "tang dan tu slippers", "van danh tu slippers", "yang anh tu slippers", "yang hanh tu slippers", "yang doanh thu slippers", "yang danh tu slippery", "yang danh tu grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "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: (((("yang danh tu slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("yang danh tu slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( yang danh tu slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("yang danh tu slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.