Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han lee chan snippets" » "han le chan snippets", "han le chau snippets", "han lee gwan snippets", "han lew chan snippets", "tan lee chan snippets", "shin lee chan 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 lee chan 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 lee chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han lee chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han lee chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.