Here are some hints for applying for scholarship:

2, Do your research well before you go asking questions as sine answers are easily found online
3, Pay attention to deadline and pre-requirements
4, Check if your university has exchanges with foreign universities or has partner universities.
5, Reach out to people you know who might give you insight such as alumni or coordinators.
Some sources:
Phinasharing: https://phinasharing.blogspot.com
1, Scholarship for Cambodia: https://www.facebook.com/ScholarshipCambodia
2, Scholarship-position: https://www.facebook.com/ScholarshipPositions
3, Scholar4dev: http://www.scholars4dev.com/
4, Scholarship for Cambodia: https://www.facebook.com/Scholarship.for.Cambodia
5, EMA-Cambodia: https://www.facebook.com/EMA.Cambodia
6, Australia Award: http://australiaawardscambodia.org/
7, China Scholarship: http://www.cucas.edu.cn/
8, France Scholarship: http://www.institutfrancais-cambodge.com/index.php?option=com_content&view=article&id=173:scholarships-offered-by-the-french-republica&catid=106&Itemid=562&lang=en
9, Japan Scholarship: http://sv2.jice.org/e/
10, Korea Scholarship: http://www.koicacambodia.org/scholarship/
11, New zealand: http://www.aid.govt.nz/funding-and-contracts/scholarships/eligible-countries/cambodia
12, UK: http://www.chevening.org/cambodia
13, USA: http://cambodia.usembassy.gov/educational_exchanges.html
There are so many more scholarships out there but I will try to list them later! so stay tune and check this blog out and Good Luck!!!