Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thong su cua snippets" » "thong tu cua snippets", "thong cua cua snippets", "thong qua cua snippets", "thong hu cua snippets", "thong vu 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: (((("thong su 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: (((("thong su cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong su cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong su cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.