Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi dam cua snippets" » "doi nam cua snippets", "doi dau cua snippets", "doi dan cua snippets", "doi dai cua snippets", "doi day cua 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 dam cua 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 dam cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi dam cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi dam cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.