Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach so hoa snippets" » "cach su hoa snippets", "mach so hoa snippets", "cach noi hoa snippets", "cach do hoa snippets", "cach so ha 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: (((("cach so hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach so hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach so hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach so hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.