Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lee hang cho snippets" » "le hang cho snippets", "lee sang cho snippets", "lele zhang cho snippets", "lee han cho snippets", "lee tang cho 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: (((("lee hang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lee hang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lee hang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lee hang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.