Perhaps you should try some spelling variations:
"trung hieu java snippets" » "thuong hieu java snippets", "trung kien java snippets", "trong hiep java snippets", "trung hieu va snippets", "trung hieu java slippers"
"dung va code snippets" » "dung va code slippers", "dung va core snippets"
"locating bug code snippets" » "locating bug code slippers", "locating bug core snippets", "locating bung code snippets", "locating bugs code 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: (((("trung hieu java snippets") or ("dung va code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trung hieu java snippets") OR ("dung va code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trung hieu java snippets ) or ( dung va code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trung hieu java snippets") or ("dung va code snippets"))) or ("locating bug code snippets"))*.