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