Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"tang cu cho snippets" » "tang cua cho snippets", "tang ca cho snippets", "tang co cho snippets", "tang cu cao 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: (((("tang cu cho snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang cu cho snippets") OR ("python using data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang cu cho snippets ) or ( python using data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang cu cho snippets") or ("python using data snippets"))) or ("locating bug code snippets"))*.