Perhaps you should try some spelling variations:
"dung nha java snippets" » "dung nhan java snippets", "dung ha java snippets", "dung khoa java snippets", "dung nha va snippets", "dung ngu java snippets"
"trong cac che snippets" » "trong cac he snippets", "trong cac chien snippets", "trong cac chat 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 nha java snippets") or ("trong cac che snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung nha java snippets") OR ("trong cac che snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nha java snippets ) or ( trong cac che snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nha java snippets") or ("trong cac che snippets"))) or ("locating bug code snippets"))*.