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