Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua tran duc slippers" » "cua toan duc slippers", "cua thanh duc slippers", "cua trung duc slippers", "cua tran duc slippery", "cua tran duc grippers"
"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: (((("cua tran duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua tran duc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua tran duc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua tran duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.