Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"hoc thu code snippets" » "hoc thu cong snippets", "hoc thu co snippets", "hoc thuc code snippets", "hoc thuy code snippets", "hoc tu code snippets", "hoc thu code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("hoc thu code snippets") or ("python using java grippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc thu code snippets") OR ("python using java grippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc thu code snippets ) or ( python using java grippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc thu code snippets") or ("python using java grippers"))) or ("locating bug code snippets"))*.