Generally, long-tail words are used accurately, because the accuracy will be higher. However, if you want to maintain display and clicks, it is recommended to use phrase synonyms or phrase cores. Don’t use broad ones, which is too wasteful. As for the core words, I personally suggest that it is best to use precise phrases. Many of my friends usually use broad keywords. I think it is okay, but the clicks of broad keywords are often high, but the conversion is generally low. The advantage of this is that it improves your clicks. Consumption and core word quality
Broad matching is recommended, because the real accuracy is not reflected in the keywords, but the precise people behind the keywords, which is why we need to analyze the customers of our store products The characteristics of the crowd, such as age, gender, unit price, style, etc., are all conducive to us making through-train premiums for our high-quality customer groups and returning to products to optimize the through-train crowd idea.
Usually when adding mobile keywords, I will delete keywords with 2/3/4 points and keep more than 5 points. In practice, keywords with 5 points will still have a chance to be displayed, of course. According to your plan weight, if the plan weight is high and low scores account for a small proportion, we can retain higher scores. We recommend targeted adjustments based on the plan's score proportions.
It is recommended that the frequency of keyword optimization be controlled to 1-2 times a week, because we need to give the keywords a testing period. If the optimization is too frequent, some of the keyword traffic opportunities will be lost. If the optimization time is too long, some non-high-quality keywords in the account will affect the through-train account
There is a 28-20 rule, hot words account for 20% and long-tail words account for 80%. According to this ratio, the matching will be Better.