Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han mao can snippets" » "van mao can snippets", "han gao can snippets", "han mac can snippets", "han mao van snippets", "han mao con snippets", "han 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: (((("han 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: (((("han mao can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han mao can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han mao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.