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