Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long le doan snippets" » "long ve doan snippets", "hong le doan snippets", "bong le doan snippets", "long le dan snippets", "long ly doanh snippets", "long le hoang 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: (((("long le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long le doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long le doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.