Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mao can tot snippets" » "mao van tot snippets", "mao con tot snippets", "mat can tot snippets", "mao ca tot snippets", "mao hanh tot snippets", "mao luan tot 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: (((("mao can tot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mao can tot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mao can tot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mao can tot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.