Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"time han du snippets" » "time human du snippets", "tim ha du snippets", "te han du snippets", "time han dau snippets", "time van du snippets", "time han tu 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: (((("time han du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("time han du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( time han du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("time han du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.