Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xach tao cao snippets" » "xach tay cao snippets", "bach mao cao snippets", "cach ta cao snippets", "xach bao cao snippets", "xach toan 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: (((("xach tao cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xach tao cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xach tao cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xach tao cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.