Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat duc hoc snippets" » "chat xuc hoc snippets", "chat doc hoc snippets", "chet duoc hoc snippets", "chat duoc hoc snippets", "chat luc hoc snippets", "chat du 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: (((("chat duc hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chat duc hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat duc hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat duc hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.