Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh dan hoc snippets" » "danh dan code snippets", "danh dau hoc snippets", "canh dan hoc snippets", "dang dan hoc snippets", "danh van hoc snippets", "danh dan toc snippets", "danh dai hoc 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("danh dan hoc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"danh dan hoc snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( danh dan hoc snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh dan hoc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.