Perhaps you should try some spelling variations:
"phi phi chen snippets" » "phi phi code snippets", "phi pei chen snippets", "phi thi chien snippets", "phi phi chinh snippets", "chi phi chen snippets", "phi thi chen snippets", "thi phi chen snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

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 snippets") or ("phi phi chen snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("phi phi chen snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( phi phi chen snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("phi phi chen snippets"))) or ("locating bug core snippets"))*.