Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat hanh mot snippets" » "dat khanh mot snippets", "dat thanh mot snippets", "dao hanh mot snippets", "dat hanh tot snippets", "dat thanh moi snippets", "dat hanh noi 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 hanh mot 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 hanh mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat hanh mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat hanh mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.