Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chu van toc snippets" » "chu van code snippets", "cuu van toc snippets", "chu han toc snippets", "chu van hoc snippets", "chu dan toc snippets", "chu van toi snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data 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: "((((\"chu van toc snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( chu van toc snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("chu van toc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.