Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thep ket can snippets" » "thien ket can snippets", "thep viet can snippets", "thu ket can snippets", "thep ket cau snippets", "thep ket van snippets", "thep ket doan 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: (((("thep ket can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thep ket can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thep ket can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thep ket can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.