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