Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"han using java snippets" » "han using data snippets", "han ung java snippets", "h2o using java snippets", "han ping java snippets"
"dung cong cong snippets" » "dung trong cong snippets", "dung cong dong snippets", "dung dang cong snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung cong cong snippets") or ("han using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cong cong snippets") OR ("han using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung cong cong snippets ) or ( han using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cong cong snippets") or ("han using java snippets"))) or ("locating bugs code snippets"))*.