Perhaps you should try some spelling variations:
"van dong code snippets" » "van dong co snippets", "van dong che snippets", "van dong cong snippets"
"anh trac code snippets" » "sinh trac code snippets", "anh tuan code snippets", "anh thuc code snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("anh trac code snippets") or ("van dong code snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh trac code snippets") OR ("van dong code snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( anh trac code snippets ) or ( van dong code snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("anh trac code snippets") or ("van dong code snippets"))) or ("locating bug code slippers"))*.