Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"goc cao cong snippets" » "goc cac cong snippets", "goc cao dang snippets", "goc cua cong snippets", "hoc cao cong snippets", "toc cao cong snippets", "doc cao 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: (((("goc cao 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: (((("goc cao cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( goc cao cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("goc cao cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.