Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hanh cac hat slippers" » "hang cac hat slippers", "hanh cat hat slippers", "nhanh cay hat slippers", "hanh cac chat slippers", "hanh cac hoat slippers", "hanh cau hat slippers", "hanh cac hat slippery", "hanh cac hat 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 ("hanh cac hat slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("hanh cac hat slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( hanh cac hat slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("hanh cac hat slippers"))) or ("locating bug code snippets"))*.