Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den kha doi snippets" » "den kham doi snippets", "den ha doi snippets", "dien khoa doi snippets", "den khoa doi snippets", "den khi doi snippets", "den khuan doi 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: (((("den kha doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den kha doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den kha doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den kha doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.