Perhaps you should try some spelling variations:
"cuon sach thin slippers" » "duong sach thin slippers", "cuoc cach thin slippers", "co sach thin slippers", "cuon sach thieu slippers", "cuon cach thien slippers", "cuon sach tham slippers", "cuon sach thin slippery", "cuon sach thin 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: (((("cuon sach thin 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 thin slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon sach thin slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon sach thin slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.