Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac cua he snippets" » "cach cua he snippets", "cac qua he snippets", "ca cua he snippets", "cac cua che snippets", "cac cua te snippets", "cac cua le 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: (((("cac cua 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: (((("cac cua he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac cua he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac cua he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.