Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat van line snippets" » "hat van linh snippets", "hat van minh snippets", "hat van dinh snippets", "hoat van line snippets", "ha van line snippets", "hai van line 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: (((("hat van line snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat van line snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat van line snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat van line snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.