Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java grippers" » "python using data grippers", "python using java slippers"
"le duc phan slippery" » "le dung phan slippery", "le duc thang slippery", "le duc phung slippery", "le duc phan slippers"

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: (((("python using java grippers") or ("le duc phan slippery"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java grippers") OR ("le duc phan slippery"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( python using java grippers ) or ( le duc phan slippery ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java grippers") or ("le duc phan slippery"))) or ("locating bugs code snippets"))*.