Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mao van dot snippets" » "dao van dot snippets", "cao van dot snippets", "hao van dot snippets", "mao van do snippets", "mao va dot snippets", "mao van dat 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 van dot 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 van dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mao van dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mao van dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.