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