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