Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quat tu cong snippets" » "luat tu cong snippets", "xuat tu cong snippets", "luat tuc cong snippets", "quat thu cong snippets", "quat te cong snippets", "quat tai 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: (((("quat tu 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: (((("quat tu cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quat tu cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quat tu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.