Perhaps you should try some spelling variations:
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets", "python using raw slippers"
"lu ben trong snippets" » "lu bien trong snippets", "lu ban trong snippets", "lu binh trong snippets", "tu ben trong snippets", "lu yen trong snippets", "lu ben trong slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: "((((\"lu ben trong snippets\") OR (\"python using raw snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( lu ben trong snippets ) OR ( python using raw snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("lu ben trong snippets") OR ("python using raw snippets"))) OR ("locating bug code snippets"))*.