Perhaps you should try some spelling variations:
"missing data java snippets" » "using data java snippets", "missing java java snippets"
"vi cong code snippets" » "vi cong cong snippets", "vi cong co snippets", "vi cong che snippets", "voi cong code snippets", "va cong code snippets", "vu cong code snippets"
"locating bug core snippets" » "locating bug code 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 ("vi cong code snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"missing data java snippets\") OR (\"vi cong code snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( missing data java snippets ) OR ( vi cong code snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("missing data java snippets") OR ("vi cong code snippets"))) OR ("locating bug core snippets"))*.