Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lap vu xuan snippets" » "lap vo xuan snippets", "lap vu quang snippets", "lap bui xuan snippets", "lap va xuan snippets", "lap du xuan snippets", "lap tu xuan snippets"

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: "((((\"python using java snippets\") OR (\"lap vu xuan snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( lap vu xuan snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("lap vu xuan snippets"))) OR ("locating bug core snippets"))*.