How many Keywords use in Gig description?

[toseeq_haider]

a: 2

b: 3

c: 4

[shahadat32]

5% keywords 

[all_expert_24]

All your experience 

[asraf09]

One gig 5 keyword 

1 main keyword 

4sub keyword 

Main keyword in description use 4times and sub keyword use 3 times any single keyword 

[seopoli]

One gig use 5 keywords

1 main Keyword-link-Title-description-pricing-(Basic-standard-premium)

4 Sub keyword-link-Title-description-pricing-(Basic-standard-premium)

[anisocialmarket]

1 hour ago, seopoli said:

One gig use 5 keywords

1 main Keyword-link-Title-description-pricing-(Basic-standard-premium)

4 Sub keyword-link-Title-description-pricing-(Basic-standard-premium)

Can I use more than 4 different sub keywords?