Perhaps you should try some spelling variations:
"va dong cong snippets" » "va dong code snippets", "va duong cong snippets", "va dung cong snippets", "va dang cong snippets", "van dong cong snippets", "ha dong cong snippets", "xa dong 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 dong 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 dong cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( missing java java snippets ) or ( va dong cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("missing java java snippets") or ("va dong cong snippets"))) or ("locating bug core snippets"))*.