Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thieu ve cao snippets" » "hieu ve cao snippets", "thiet ke cao snippets", "thieu so cao snippets", "thieu va cao snippets", "thieu ve bao snippets", "thieu ve cac 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: (((("thieu ve 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: (((("thieu ve cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thieu ve cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thieu ve cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.