Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"coc san chi snippets" » "toc san chi snippets", "cac san chi snippets", "coc ban chi snippets", "coc van chi snippets", "coc luan chi snippets", "coc toan chi 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: (((("coc san chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("coc san chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( coc san chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("coc san chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.