Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc co le snippets" » "duoc hoc le snippets", "duong co le snippets", "duoc hoi le snippets", "duoc do le snippets", "duoc co e snippets", "duoc co ly 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 co le 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 co le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc co le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc co le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.