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"
"va luong va snippets" » "van luong va snippets", "va tuong va snippets", "va huong va snippets", "va dung va snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"missing data java snippets\") OR (\"va luong va snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( missing data java snippets ) OR ( va luong va snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("missing data java snippets") OR ("va luong va snippets"))) OR ("locating bug core snippets"))*.