Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"missing data java snippets" » "using data java snippets", "missing java java snippets"
"vi dong va snippets" » "voi dong va snippets", "di dong va snippets", "va dong va snippets", "vi dung va snippets", "vi dong ha snippets", "vi luong va 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 dong va 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 dong va snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( missing data java snippets ) OR ( vi dong va snippets ))) OR ( locating bug core snippets ))*.