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