Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"nom tac dau snippets" » "nom tay dau snippets", "nom cac dau snippets", "nhom tay dau snippets", "nom tac da snippets", "nom tac dao snippets", "nom thau dau 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 ("nom tac dau snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"nom tac dau snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( nom tac dau snippets ))) OR ( locating bug core snippets ))*.