Perhaps you should try some spelling variations:
"using data cong snippets" » "using data code snippets", "using java cong snippets", "using sat cong snippets", "missing data cong snippets", "using dang cong snippets", "using dai cong snippets", "using dam cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

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

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