"polish skills" is correct and usable in written English.
You can use it when you are referring to the act of making your skills more refined or advanced. For example: She spent the summer polishing her writing skills.
Georgia State's Dana Brown wanted to polish skills she learned during the 2003 pilot year, but she wasn't prepared for the size of the AGU meeting.
For many, it can be a good way to test-drive a new career, get a foot in the door of a new industry or polish skills that can ultimately help lead to a more fulfilling or lucrative full-time job.
Their responsible, if sometimes Tiger-ish, moms and dads will be investing their money in their children's future differently, sending them to one-week soccer and lacrosse programs, SAT prep courses and unpaid internships designed to polish skills, boost scores and impress college admissions officers.
Polishing Skills Through Games Anyone who stepped into Mark Greenberg's class at Camelback High School in Phoenix last year probably saw an entire class of students immersed in computer games.
After another winter polishing skills they will surely challenge strongly again in 2015".
You'll get to polish your skills in the most outstanding manner as well as gain a lot of new skills.
Or simply looking to polish your skills?
When an instructor deems them ready, they polish their skills on walk-in clients.
Graduate Writing Center helps graduate students polish the skills needed to write productively.
Another student, Drew Fornarola, said he audited Mr. Esparza's class to polish his skills as a composer.
On the weekend workshop in Brighton, learn how to structure jokes, write funny material and polish performance skills.
