Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sinh kiem da snippets" » "trinh kiem da snippets", "binh khiem da snippets", "sinh vien da snippets", "sinh kiem va snippets", "sinh kiem tra snippets", "sinh kiem lam 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: (((("sinh kiem da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sinh kiem da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sinh kiem da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sinh kiem da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.