Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc bai con snippets" » "duoc ban con snippets", "duoc bat con snippets", "duoc dai con snippets", "duoc bai lon snippets", "duoc hai con snippets", "duoc tai cong 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 bai con 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 bai con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc bai con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc bai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.