"avoid bias" is correct and usable in written English.
For example, you could write, "Given the complexity of the situation, we must strive to avoid bias in our decision-making."
Bias: Was the population sampled to avoid bias?
— We avoid bias here at The Quad.
There is also a need to minimize or avoid bias.
"We try to avoid bias in setting accounting standards," he said.
The quartet realised that they had to avoid bias, which could have derailed the fragile process.
The policy is intended to avoid bias in reporting information about drugs that doctors prescribe.
It also seeks to avoid bias, and also works at a slow, deliberative pace.
Randomized clinical trials often involve blinding as a methodological procedure to avoid bias.
These data sets were processed both to validate the new ANN model and to avoid bias.
In such studies, it is essential to avoid bias, control confounding and undertake accurate replication.
We tested this conclusion employing LM-PCR protocols designed to avoid bias.
