Perhaps you should try some spelling variations:
"dung cuu trinh snippets" » "dung cuu tinh snippets", "dung cuu trich snippets", "dung qua trinh snippets", "dung cua trinh snippets", "dung cu trinh snippets", "dung cau trinh snippets"
"hang java java slippers" » "hang va java slippers", "hang java java slippery", "hang java java grippers"
"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: (((("dung cuu trinh snippets") or ("hang java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cuu trinh snippets") OR ("hang java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cuu trinh snippets ) or ( hang java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cuu trinh snippets") or ("hang java java slippers"))) or ("locating bug code snippets"))*.