Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat trong da snippets" » "dot trong da snippets", "vat trong da snippets", "cay trong da snippets", "dat trong dam snippets", "dat trong dan snippets", "dat trong dao 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: (((("python using java snippets") or ("dat trong da snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dat trong da snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dat trong da snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dat trong da snippets"))) or ("locating bug code snippets"))*.