Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat dan chi snippets" » "hat van chi snippets", "mat dan chi snippets", "nhat danh chi snippets", "hat danh chi snippets", "hat dan thi 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: (((("hat dan 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: (((("hat dan chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat dan chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat dan chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.