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