Perhaps you should try some spelling variations:
"luan trinh java snippets" » "xuan trinh java snippets", "luan tinh java snippets", "luan tranh java snippets"
"dung vbug code slippers" » "dung vung code slippers", "dung vbung code slippers", "dung vbugs code slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("luan trinh java snippets") or ("dung vbug code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan trinh java snippets") OR ("dung vbug code slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan trinh java snippets ) or ( dung vbug code slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan trinh java snippets") or ("dung vbug code slippers"))) or ("locating bug code snippets"))*.