Russia	rus	0.1374
Vietnam	vietnam	0.1374
Russia and Vietnam	rus and vietnam	0.1374
co-operation	co oper	0.1374
text	text	0.1374
Declaration	decl	0.1374
Hanoi	han	0.1374
countries	countr	0.0497
field	field	0.0497
DEFENSE	def	0.0497