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