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