Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat hoc cho snippets" » "chat hoa cho snippets", "chat thom cho snippets", "cho hoc cho snippets", "chat hoc cao snippets", "chat hoc pho snippets", "chat hoc co 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 hoc 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: (((("chat hoc cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat hoc cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat hoc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.