Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang duc che snippets" » "dang quoc che snippets", "dao duc che snippets", "dang su che snippets", "dang duc chien snippets", "dang duc nghe snippets", "dang dich che 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: (((("dang duc che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang duc che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang duc che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang duc che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.