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