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