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