Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"van cong do snippets" » "van dong do snippets", "van phong do snippets", "phan cong do snippets", "van cuong do snippets", "van cong dot snippets", "van cong so snippets"

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

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