Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi luoc can snippets" » "doi cuoc can snippets", "dai luoc can snippets", "tom luoc can snippets", "doi luc canh snippets", "doi hoc can snippets", "doi luoc dai 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 luoc can 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 luoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi luoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi luoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.