Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hut toan do snippets" » "huu toan do snippets", "huy toan do snippets", "thuat toan do snippets", "hut toan ho snippets", "hut toan co snippets", "hut toan du 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: (((("hut toan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hut toan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hut toan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hut toan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.