Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lenh su cao snippets" » "leng su cao snippets", "lenh xu cao snippets", "benh sau cao snippets", "lenh cu cao snippets", "lenh vu cao snippets", "lenh su co 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: (((("lenh su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lenh su cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lenh su cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lenh su cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.