Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"thong cad data slippers" » "thong cac data slippers", "thong cap data slippers", "thong cau data slippers", "thong cai dat slippers", "thong a data slippers", "thong 3d data slippers", "thong cad data slippery", "thong cad data 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 ("thong cad data slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("thong cad data slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( thong cad data slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("thong cad data slippers"))) or ("locating bug code snippets"))*.