Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi dap chon snippets" » "doi tap chon snippets", "doi dap chinh snippets", "doi cap cho snippets", "hoi dap chon snippets", "doi dau chon snippets", "do dap chon 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 dap chon 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 dap chon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi dap chon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi dap chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.