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: (((("dang vat 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: (((("dang vat cham snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dang vat cham snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang vat cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.