Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap dao van slippers" » "phap dao van slippers", "nhan dan van slippers", "phap day van slippers", "nhap dang van slippers", "nhap dao van slippery", "nhap dao van 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: (((("nhap dao 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: (((("nhap dao van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap dao van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap dao van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.