Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong nuoi da snippets" » "cong nhoi da snippets", "cong noi da snippets", "cong nguon da snippets", "cong nuoi day snippets", "cong nuoi ga snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 nuoi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong nuoi da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong nuoi da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong nuoi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.