Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thao sat don snippets" » "khao sat don snippets", "thao van don snippets", "tao sau don snippets", "thao bat dong snippets", "thao sat cong snippets", "thao vat dong 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: (((("thao sat don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thao sat don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thao sat don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thao sat don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.