Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi benh ve snippets" » "doc benh ve snippets", "noi benh ve snippets", "duoc benh ve snippets", "doi benh va snippets", "doi benh vien 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: (((("doi benh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi benh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi benh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi benh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.