Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc luan mo snippets" » "nuoc luan mo snippets", "duoc luat mo snippets", "thuoc luan mo snippets", "duoc luat moi snippets", "duoc luan von snippets", "duoc luan 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: (((("duoc luan mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc luan mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc luan mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc luan mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.