Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung mao can snippets" » "dung mo can snippets", "dung may can snippets", "dung bao can snippets", "dung mao van snippets", "dung mao con snippets", "dung mat can snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung mao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung mao can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung mao can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.