Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc le cao snippets" » "hoc he cao snippets", "hoc te cao snippets", "hoc ly cao snippets", "hoc le cap snippets", "hoc le cau snippets", "hoc le 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: (((("hoc le 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: (((("hoc le cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc le cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc le cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.