Perhaps you should try some spelling variations:
"trinh bang cong snippets" » "trinh bang code snippets", "trinh bong cong snippets", "trinh ban cong snippets", "tinh bang cong snippets", "trinh dang cong snippets", "trinh bang song snippets", "trinh hang cong 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 java java snippets") or ("trinh bang cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh bang cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh bang cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh bang cong snippets"))) or ("locating bug core snippets"))*.