Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using java java snippets" » "using data java snippets", "using java java slippers"
"viet tan van snippets" » "viet tran van snippets", "viet tuan van snippets", "viet van van snippets", "viet tang van snippets", "viet luan van snippets", "viet tan van slippers"

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

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