Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"van hoang va snippets" » "van hoan va snippets", "quan hoang va snippets", "tran hoang va snippets", "van hoang van snippets", "van hang va snippets", "van hoang ha snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using data java snippets") OR ("van hoang va snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using data java snippets\") OR (\"van hoang va snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( using data java snippets ) OR ( van hoang va snippets ))) OR ( locating bug core snippets ))*.