Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toan hoc cao snippets" » "toan hoc code snippets", "toan khoa cao snippets", "van hoc cao snippets", "hoa hoc cao 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: (((("python using data snippets") OR ("toan hoc cao snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using data snippets\") OR (\"toan hoc cao snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using data snippets ) OR ( toan hoc cao snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using data snippets") OR ("toan hoc cao snippets"))) OR ("locating bug core snippets"))*.