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