Tenancy Agreements

for the past three years, I have been able to make my own decisions as I am in a foreign country with no adult supervision, and it has allowed me to make certain observations, one of which includes the way tenancy agreements are made.
Unfortunately in the area I live in, it is mostly students, who also happen to be internationals. they sign contracts for apartments which often are for one year to two years. Landlords then often decide to end a contract, often giving up to only two weeks notice to tenants to find alternative housing. They may even change the agreement after the deal has been made, and although it is often an oral agreement, it needs to be upheld, because if for example, your potential landlord promises you a furnished apartment, and you only get a partially furnished apartment and discover this after paying deposit and moving in, it becomes difficult to move out again and you would have paid the full deposit amount for less than what was agreed upon.
as students, especially internationals, this becomes a major problem because in most cases, there is nobody who can easily help solve such problems.
there needs to be tougher laws on landlords, in order to ensure such situations do not become a regular occurrence, as well as on the tenants, who in certain situations may want to abuse the rights they have.