Perhaps you should try some spelling variations:
"cong luong dat snippets" » "cong thuong dat snippets", "nang luong dat snippets", "cong dong dat snippets", "cong luong dao snippets", "cong luong vat snippets", "cong luong mat snippets", "cong luong 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: (((("cong luong 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: (((("cong luong dat snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong luong dat snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong luong dat snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.