Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thiet de do snippets" » "thiet ke do snippets", "thiet yeu do snippets", "thuyet de do snippets", "thiet de dao snippets", "thiet den do snippets", "thiet de doi 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: (((("thiet de 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: (((("thiet de do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thiet de do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thiet de do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.