Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lenh va chua snippets" » "benh va chua snippets", "lanh va chua snippets", "lenh vi chua snippets", "lenh vua chua snippets", "lenh ca chua snippets", "lenh va chu 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: (((("lenh va chua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lenh va chua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lenh va chua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lenh va chua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.