Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau ngoc he snippets" » "dau nuoc he snippets", "dang ngoc he snippets", "doan ngoc he snippets", "dau ngoc hue snippets", "dau ngoc ha snippets", "dau ngoc de 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: (((("dau ngoc he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau ngoc he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau ngoc he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau ngoc he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.