Perhaps you should try some spelling variations:
"cong nghe code snippets" » "cong nghe che snippets", "cong nghe co snippets", "cong nghe cong snippets", "cong nghe code slippers"
"hanhg java java snippets" » "hanhg java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("cong nghe code snippets") or ("hanhg java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong nghe code snippets") OR ("hanhg java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong nghe code snippets ) or ( hanhg java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong nghe code snippets") or ("hanhg java java snippets"))) or ("locating bug code snippets"))*.