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