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"
"lo van tuong snippets" » "lo van truong snippets", "lo van thuong snippets", "lo van duong snippets", "le van tuong snippets", "vo van tuong snippets", "so van tuong snippets", "lo van tuong 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: "((((\"lo van tuong snippets\") OR (\"python using raw snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( lo van tuong snippets ) OR ( python using raw snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("lo van tuong snippets") OR ("python using raw snippets"))) OR ("locating bug code snippets"))*.