Hello, Siriwat —
Your keywords must improve.
Suggestions for better keyword management:
1) Use 20 simple and accurate terms that represent only what is depicted in the image.
2) Disambiguate all terms. Check them for accuracy. Do not duplicate disambiguated terms.
3) Avoid keywording an entire batch with the same terms. Review each individual file in your batch for accuracy before uploading.
4) Do not use trademarked terms for creative royalty-free imagery. They are acceptable for Editorial content only. (Examples of trademarked terms: Apple, iPad, iPhone, Instagram, Facebook, etc.)