Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat dien do snippets" » "phat dien do snippets", "thuat dien do snippets", "chat thien do snippets", "chat bien do snippets", "chat dien da snippets", "chat den do 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: (((("chat dien do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chat dien do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat dien do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat dien do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.