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