"S + rất lấy làm + Ajd..." => "S + be really/very + Ajd..." Ex: 1) Tôi "rất lấy làm" tiếc --> I'm really sorry. 2) Chúng tôi "rất lấy làm" hân hạnh --> It was really my pleasure. 3) Tôi "rất lấy làm" hài lòng nhận được thư anh --> I was very pleased to get your letter. 4) Tôi "rất lấy làm" vinh dự khi được nói chuyện với bạn. -> I'm very honored to talk to you.

Exactly "lấy làm" sounds like phrasal verb, it shows your feeling

'Lấy" is an old word, an old meaning. Nowaday, it is not very common. it is used in a very formal situation. for example, when your friends tell you their very sad news or tell you one member of their family has died, you can say: tôi rất lấy làm tiếc khi nghe tin đó". it means " i'm so sorry to hear that". "Lấy" in your example was not very suitable. Another example, there is an accident in a factory. one person has died. the Director wants to apologize his family and he can say" chúng tôi rất lấy làm tiếc vì điều đó". it means " we are so sorry about that".