"expand confidence" is not an accurate or valid phrase to use in written English.
Instead, you might use words like "build" or "strengthen" confidence. For example: "Regular exercise and positive self-talk can help to build confidence."
Follow these strategies to expand the confidence you've got into something even greater.
Revenge may not fit the holiday spirit, but the medley allowed Mr. Feinstein to demonstrate his ever-expanding confidence as a pugilistic jazz swinger in front of a six-member band led by John Oddo.
Metrological concepts, in particular expanded uncertainty, confidence level and conformity assessment, are used to reinterpret expert judgements, with the aim of transferring as much as possible the expert judgement know-how into a semi-automated evaluation process of X-ray images.
On the other hand, the expanded 95% confidence interval of overall throughput of the proposed scheme reflects that the unstable transmission, which is resulted in the MNs associates with the AP according to the channel utilization and user count instead of the SNR.
Freezing the exchange rate meant Chinese manufacturers did not have to worry that a weaker dollar would make it harder for Americans to buy Chinese products, allowing them to expand with greater confidence.
The agreeing sides will expand and deepen confidence-building measures in the military sphere in order to strengthen mutual security, and to strengthen regional and international stability.
The new safety apparatus gave Mr. Obama the confidence to expand leasing on public lands and to authorize Shell to begin drilling exploratory wells in the Arctic Ocean last summer.
There is a lot of sizing each other up; Wales had a very cagey win against us in Cardiff yet the result gave them the confidence to expand for the rest of the tournament.
As I saw it, the function of the women's pages was to give women confidence to expand their role in society, while improving their status as wives and mothers.
