Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"
"tri hoan dan snippets" » "thi hoan dan snippets", "tri doanh dan snippets", "tri nhan dan snippets", "tri hoa dan snippets", "tri hoang dang snippets", "tri khoan danh 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 raw snippets\") OR (\"tri hoan dan snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( python using raw snippets ) OR ( tri hoan dan snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using raw snippets") OR ("tri hoan dan snippets"))) OR ("locating bug core snippets"))*.