Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat thai cua snippets" » "dat tai cua snippets", "da thai cua snippets", "dao thai cua snippets", "dat than cua snippets", "dat tai cuc snippets", "dat tri cua 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: (((("dat thai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat thai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat thai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat thai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.