Sorry, I can only answer about scholarships plus some extra info on schools here that you can go over with the mom. For grants, I know there are some government ones, but I'm not sure what the eligibility requirements are. Schools here do have scholarship programs, but not as extensive as in the US. At any school she wants to apply to, she can ask about available scholarships and even grants. Some are based on her high school performance, some on her performance in college, and some have other criteria. But depending on the school, some scholarships exist in name only, with requirements deliberately set to be unreasonable, borderline or completely unattainable, so the school can claim to offer scholarships while barely handing any out. If she can get into UP, especially UP Diliman, she'd get the best education in the Philippines at practically no cost to you. At most just dorm costs and maybe minor miscellaneous fees (less than K-12 private school tuition). Depending on her field, PUP could be another decent state school option in Manila. As for private schools... honestly, almost all of them aren't very good. Definitely avoid DLSU. I only bring up DLSU because she seems to be aiming high, and in Metro Manila DLSU is considered one of the "top" schools. But... the quality has dropped a lot (even though it's still counted among the "big 4"). Locally it's still revered, but that isn't based in reality. And the tuition is ridiculously high. All that tuition really buys is connections to help students get ahead domestically later on. I've had teachers from DLSU, and every single one had a massive ego with no real knowledge to back it up. Even their master's graduates would struggle with the exams I took for my bachelor's at my alma mater in North America; they might not even pass my senior-year exams. Of the big 4, UP and UST are probably the best options, UST being private. If she wants to go into health care, UST can be a great alternative if UP doesn't work out. Just a note: their nursing program can get pretty stressful for students because of its 100% passing-rate record. I hope you get the information you need for your decision.

Sounds like you've been paying for private school all these years. If you want to keep paying for a private university the same way, you certainly can. My wife just finished her second degree at Mapua, and the total cost was around 80k a year. There are much cheaper schools out there. As someone else said, there are state universities that are free. Nearly every school has a scholarship program. At Mapua at least, you needed a 90% or better average AND to be socioeconomically disadvantaged.

Public universities and colleges are free. Tell her to enroll in a state university.

Eh, I'd only have her go to a public university if it's known to be good, like the ones in Manila. Otherwise I'd pick a private school. It's not like it would add that much to your costs, since you've already been paying for her private school.