Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi tran 30 slippers" » "thi trang 30 slippers", "thi thanh 30 slippers", "thi lan 30 slippers", "thi tranh 30 slippers", "thi tran 30 slippery", "thi tran 30 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: (((("thi tran 30 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi tran 30 slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi tran 30 slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi tran 30 slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.