Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc tre cau snippets" » "thuc te cau snippets", "thuoc tren cau snippets", "thuc tien cau snippets", "thuc tra cau snippets", "thuc tre can 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: (((("thuc tre cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc tre cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc tre cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc tre cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.