1 Capitalise I throughout.
2 Don't use PS
3 I'd get rid of this sentence: After consideration, i recognize that have had enough conditions to apply application of employment for this position.
4 I don't know if this is the normal way of doing things in Vietnam: Within the next two week i will contact you to determine if it is possible to connect with someone who could represent for your company in this recruitment turn. I would say something like 'I am available for interview at your conveninece' and let them get in touch with me if they want to see me