Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"vi quan van snippets" » "vi luan van snippets", "vi quan va snippets", "vi quan luan snippets", "va quan van snippets", "ve quan van snippets", "vo quan van snippets", "vi quan van slippers"
"using low java snippets" » "using low java slippers"

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: "((((\"vi quan van snippets\") OR (\"using low java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( vi quan van snippets ) OR ( using low java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi quan van snippets") OR ("using low java snippets"))) OR ("locating bugs code snippets"))*.