Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den co cac snippets" » "den coi cac snippets", "den o cac snippets", "den do cac snippets", "den cho cac snippets", "den ca cac snippets", "den co cau 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 co cac 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 co cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den co cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den co cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.