Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thuc dan hoc snippets" » "thuc dan code snippets", "thuc hanh hoc snippets", "hoc dan hoc snippets", "thuc vat hoc snippets", "thuc van hoc snippets", "thuc dan toc snippets", "thuc 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: (((("thuc 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: "((((\"thuc dan hoc snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( thuc dan hoc snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc dan hoc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.