Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong bo ho snippets" » "cong bao ho snippets", "cong so ho snippets", "cong co ho snippets", "cong bo hon snippets", "cong mo ho 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 bo ho 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 bo ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong bo ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong bo ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.