Perhaps you should try some spelling variations:
"hanh trinh luan slippers" » "canh tranh luan slippers", "hanh chinh luan slippers", "hanh trinh luat slippers", "hanh trinh quan slippers", "hanh trinh han slippers", "hanh trinh luan slippery", "hanh trinh luan 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: (((("hanh trinh luan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh trinh luan slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh trinh luan slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh trinh luan slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.