Proofreading (also proof-reading) is the reading of a galley proof or computer monitor to detect and correct production-errors of text or art. Proofreaders are expected to be consistently accurate by default because they occupy the last stage of typographic production before publication. wikipedia.org

Vietnamese is the national and official language of Vietnam. It is the mother tongue of Vietnamese people (Kinh), and of about three million overseas Vietnamese. It is also spoken as a second language or a first language by many ethnic minorities of Vietnam. wikipedia.org

Backlinks, also known as incoming links, inbound links, inlinks, and inward links, are incoming links to a website or web page. wikipedia.org

Microsoft Office Word is a word processor designed by Microsoft. wikipedia.org

Search engine optimization (SEO) is the process of improving the visibility of a website or a web page in search engines via the "natural" or un-paid ("organic" or "algorithmic") search results. wikipedia.org

SEO content is any content created with the goal of attracting search engine traffic. wikipedia.org

Translation from English to Vietnamese and Vietnamese to English.

A data entry clerk, sometimes called a typist, is a member of staff employed to type data into a database using a keyboard. The keyboards used can often have specialist keys and multiple colours to help them in the task and speed up the work. wikipedia.org