Perhaps you should try some spelling variations:
"dusing java java snippets" » "using java java snippets", "dusing java java slippers"
"vi ung data snippets" » "vi using data snippets", "vi dung dat snippets", "vi big data snippets", "va ung data snippets", "vi luong data snippets", "vi trung data snippets", "vi ung data slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dusing java java snippets") or ("vi ung data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dusing java java snippets") OR ("vi ung data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dusing java java snippets ) or ( vi ung data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dusing java java snippets") or ("vi ung data snippets"))) or ("locating bug code snippets"))*.