Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat thu ve snippets" » "dat phu ve snippets", "sat thuc ve snippets", "dat tieu ve snippets", "dat thuc ve snippets", "dat thu xe snippets", "dat thu va 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 thu ve 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 thu ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat thu ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat thu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.