Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao te cong snippets" » "nao tai cong snippets", "nao thi cong snippets", "nao thu cong snippets", "nao de cong snippets", "nao me cong snippets", "nao tu cong 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: (((("nao te cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nao te cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao te cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao te cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.