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