Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets", "python using data slippers"
"tu hoc dai snippets" » "tu hoc dan snippets", "te hoc dai snippets", "tu hoc dai 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: "((((\"tu hoc dai snippets\") OR (\"python using data snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( tu hoc dai snippets ) OR ( python using data snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("tu hoc dai snippets") OR ("python using data snippets"))) OR ("locating bugs code snippets"))*.