Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"luan nha va snippets" » "luan phan va snippets", "luan khoa va snippets", "xuan nhan va snippets", "luan nhan va snippets", "luan nha van snippets", "luan nha ha snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"luan nha va snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( luan nha va snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("luan nha va snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.