Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua doi co snippets" » "sua doi co snippets", "cua dai co snippets", "cua hoi co snippets", "cua doi bo snippets", "cua moi co 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: (((("cua doi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua doi co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua doi co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua doi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.