Perhaps you should try some spelling variations:
"missing data java snippets" » "using data java snippets", "missing java java snippets"
"va ung cong snippets" » "va dung cong snippets", "va luong cong snippets", "va duong cong snippets"
"locating bug code snippets" » "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: (((("missing data java snippets") or ("va ung cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("missing data java snippets") OR ("va ung cong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( missing data java snippets ) or ( va ung cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("missing data java snippets") or ("va ung cong snippets"))) or ("locating bug code snippets"))*.