市场调查

• 亠(lid; cover)ASSOCIATIVE
• 巾(cloth; towel)RADICAL

A market is a place where goods are displayed below and covered by a roof above.

• 土(earth; soil; land)RADICAL
• 勿(don't; must not)PHONETIC

A wide field of land sounds similar to the word for things or objects.

• 言(words; speech)RADICAL
• 周(everywhere; thorough)PHONO-SEMANTIC

Using words to divide work and assign tasks everywhere is coordination.

• 木(wood; timber)RADICAL
• 旦(dawn; early morning)PHONETIC

A person searching early in the morning with a stick probing around represents examining and investigating.