It's not possible to count the words in any language, because there is no universal definition of what a word is. Vietnamese is particularly problematic, because it is written in syllable form, based on Chinese, and there is controversy as to whether compound syllables should be written as (and considered) single words.
But most estimates place the number between 40,000 and 160,000 words (which is the same range for almost all other languages).
Note: English is an exception. It has the largest number of words of any language in the world, estimated at 170,000 to 250,000 words. No language has more words than English.
There are 86 million people in Vietnam as of 2011
829832 people are estimated to be "homeless in Vietnam.
a lot
None
60,000 people in the war fought the air force of vietnam.
According to the list of people living in Vietnam today (July, 2013) was 92,477,857
to many people where being killed
6,000 men:p
asshoes
64839
million
35000