Perhaps you should try some spelling variations:
"may trinh cach snippets" » "may trinh code snippets", "may tinh cach snippets", "may trinh cac snippets", "may trinh mach snippets", "lap trinh cach snippets", "quy trinh cach 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 ("may trinh cach snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("may trinh cach snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( may trinh cach snippets ))) or ( locating bug core snippets ))*.