Perhaps you should try some spelling variations:
"missing data java snippets" » "using data java snippets", "missing java java snippets"
"vi cuong vo snippets" » "vi luong vo snippets", "vu cuong vo snippets", "viet cuong vo snippets", "vi luong va snippets", "vi duong va snippets", "vi cong va snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vi cuong vo snippets") OR ("missing data java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( vi cuong vo snippets ) or ( missing data java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi cuong vo snippets") or ("missing data java snippets"))) or ("locating bug code snippets"))*.