As long as Zhou Tian disappears for a period and doesn't give those forces the chance to investigate, at the time, those forces themselves would doubt their previous discoveries. Even if Zhou Tian happened to leave some clues for those forces, whether they choose to investigate is uncertain. Even if they decide to do so, it's likely they won't find Zhou Tian.
Therefore, even if Zhou Tian left a few traces, it wouldn't hinder his plan at that time. At least until his plan is successful, those forces would struggle to find him hidden in the shadows based on the traces he left. By the time his plan is fully successful, he'll already reveal himself, and it wouldn't be necessary for those forces to discover him.
When those forces find traces, their effect isn't significant. At least, without definitively linking newly appeared strong figures to Zhou Tian, they would not spend massive resources to chase a person who might not even exist.
