Perhaps you should try some spelling variations:
"nhan dan va snippets" » "phan dau va snippets", "gian dan va snippets", "nhan tai va snippets", "nhan doan va snippets", "nhan dan ca snippets", "nhan ban va snippets", "nhan dan va slippers"
"ngu java java snippets" » "ngu va java snippets", "ngu 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: (((("nhan dan va snippets") or ("ngu java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan dan va snippets") OR ("ngu java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan dan va snippets ) or ( ngu java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan dan va snippets") or ("ngu java java snippets"))) or ("locating bug code snippets"))*.