Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao me cua snippets" » "nao de cua snippets", "nao mu cua snippets", "nao me chua snippets", "nao men cua snippets", "nao le cua 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 me cua 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 me cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao me cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao me cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.