Perhaps you should try some spelling variations:
"phan using java snippets" » "phan ung java snippets", "phan sinh java snippets", "python using java snippets", "phan using data snippets"
"dung dung co snippets" » "duong dung co snippets", "ung dung co snippets", "dung ung co snippets", "dung dung cho snippets", "dung dung cong snippets", "dung dung cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: "((((\"phan using java snippets\") OR (\"dung dung co snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( phan using java snippets ) OR ( dung dung co snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("phan using java snippets") OR ("dung dung co snippets"))) OR ("locating bug code snippets"))*.