Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"doi qua trinh snippets" » "doi qua kinh snippets", "doi cua trinh snippets", "hoi qua trinh snippets", "doi quy trinh snippets", "doi qua trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java 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: "((((\"doi qua trinh snippets\") OR (\"dung java java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( doi qua trinh snippets ) OR ( dung java java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi qua trinh snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets"))*.