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