Need advice on investing into exchange-traded funds such as VWRA, IWDA, and MBH

I am interested investing into the following ETFs:
VWRA: Vanguard FTSE All-World UCITS ETF USD Acc
IWDA: iShares Core MSCI World UCITS ETF USD (Acc)
MBH: NikkoAM SGD IGBond ETF (MBH)

I already have an account with Phillip Securities and OCBC securities, both linked to my CDP account.
For MBH, I believe that I can stary to buy via my Philip Securities account. What about VWRA and IWDA? Also, could anyone point me in the right direction, on how to check the annual management fees for these ETFs?