Perhaps you should try some spelling variations:
"cung trinh java slippers" » "cong trinh java slippers", "chuong trinh java slippers", "cung trong java slippers", "cung trinh java slippery", "cung trinh java grippers"
"dngu java java snippets" » "ngu java 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: (((("dngu java java snippets") or ("cung trinh java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dngu java java snippets") OR ("cung trinh java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dngu java java snippets ) or ( cung trinh java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dngu java java snippets") or ("cung trinh java slippers"))) or ("locating bug code snippets"))*.