Perhaps you should try some spelling variations:
"hieu moi code snippets" » "nhiem moi code snippets", "hieu so code snippets", "hieu bo code snippets", "hieu moi co snippets", "hieu moi cong snippets", "hieu moi con snippets", "hieu moi code slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug code slippers"
"locating bug code snippets" » "locating bug code slippers"

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: (((("hieu moi code snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu moi code snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu moi code snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu moi code snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.