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