Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"vi luong van snippets" » "vi luong va snippets", "vi duong van snippets", "vi luong vat snippets", "dai luong van snippets", "van luong van snippets", "hai luong van snippets", "vi luong van slippers"
"locating bug code snippets" » "locating bug code slippers", "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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("vi luong van snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vi luong van snippets") OR ("using java java snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( vi luong van snippets ) or ( using java java snippets ))) or ( locating bug code snippets ))*.