Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao phan van slippers" » "co phan van slippers", "cho phan van slippers", "cac phan van slippers", "cao pham van slippers", "cao thanh van slippers", "cao luan van slippers", "cao phan van slippery", "cao phan van grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cao phan van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao phan van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao phan van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao phan van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.