Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach cao so snippets" » "cach bao so snippets", "cach nao so snippets", "mach cao so snippets", "cach cao son snippets", "cach co so snippets", "cach cao su 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 cao so 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 cao so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach cao so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach cao so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.