Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lee dong cho snippets" » "le dong cho snippets", "lee jeong cho snippets", "lao dong cho snippets", "lee dung cho snippets", "lee dong co snippets", "lee dong hoc 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 dong 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 dong cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lee dong cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lee dong cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.