Perhaps you should try some spelling variations:
"learning dan tu snippets" » "learning data tu snippets", "learning a tu snippets", "learning due tu snippets", "learning danh tu snippets", "learning dan su snippets", "learning ban tu snippets", "learning dan tu slippers"
"creating a a snippets" » "creating _ a snippets", "reading a a snippets", "creating a a slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("learning dan tu snippets") or ("creating a a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("learning dan tu snippets") OR ("creating a a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( learning dan tu snippets ) or ( creating a a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("learning dan tu snippets") or ("creating a a snippets"))) or ("locating bug code snippets"))*.