Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den bi hoi snippets" » "den bu hoi snippets", "den di hoi snippets", "den vi hoi snippets", "den bia hoi snippets", "den bi hai snippets", "den bi hoa 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 bi hoi 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 bi hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den bi hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den bi hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.