Perhaps you should try some spelling variations:
"dung von cham snippets" » "dung von code snippets", "dong von cham snippets", "dung cong cham snippets", "dung va cham snippets", "dung song cham snippets", "dung van chat snippets", "dung toc cham snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java 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 von cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung von cham snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung von cham snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung von cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.