Perhaps you should try some spelling variations:
"cuon sach trac slippers" » "duong sach trac slippers", "cuoc cach trac slippers", "co sach trac slippers", "cuon sach tranh slippers", "cuon sach tham slippers", "cuon sach tren slippers", "cuon sach trac slippery", "cuon sach trac 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"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cuon sach trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon sach trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon sach trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon sach trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.