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