Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hat dan chat snippets" » "hat dan code snippets", "hat van chat snippets", "hat dan chan snippets", "hat ban chat snippets", "mat dan chat snippets", "nhat danh chat snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data 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 chat snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat dan chat snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hat dan chat snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat dan chat snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.