Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che ho cuu snippets" » "che do cuu snippets", "he ho cuu snippets", "che khoa cuu snippets", "che ho chu snippets", "che ho cua snippets", "che so cuu 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 cuu 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 cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che ho cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che ho cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.