Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che ho he snippets" » "che do he snippets", "he ho he snippets", "che khoa he snippets", "che hoc he snippets", "che cho he snippets", "che hoa he 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: (((("che ho he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che ho he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che ho he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che ho he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.