Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong cho hee snippets" » "dong cho hee snippets", "cong co hee snippets", "rong cho hee snippets", "cong choi hee snippets", "cong cho he snippets", "cong cho thue 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: (((("cong cho hee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong cho hee snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cho hee snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cho hee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.