Perhaps you should try some spelling variations:
"vi luong code snippets" » "vi luong cong snippets", "vi luong che snippets", "dai luong code snippets", "van luong code snippets", "hai luong code snippets"
"using java java snippets" » "using data java snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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