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