Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc nam de snippets" » "duoc lam de snippets", "duc nam de snippets", "nuoc nam de snippets", "duoc nam da snippets", "duoc nam do snippets", "duoc nam he 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 nam de 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 nam de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc nam de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc nam de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.