Perhaps you should try some spelling variations:
"nang bieu dat snippets" » "nang dieu dat snippets", "nang viet dat snippets", "lang bien dat snippets", "nang bieu dac snippets", "nang lieu data snippets", "nang lieu dao snippets", "nang bieu dat slippers"
"hang java java snippets" » "hang va java snippets", "hang java java 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: (((("nang bieu dat snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang bieu dat snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang bieu dat snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang bieu dat snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.