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